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La Deconstrucción De La Idea De Maternidad En Dos Novelas Colombianas: La Perra De Pilar Quintana Y Esta Herida Llena De Peces De Lorena Salazar Masso, Catalina Revelo May 2024

La Deconstrucción De La Idea De Maternidad En Dos Novelas Colombianas: La Perra De Pilar Quintana Y Esta Herida Llena De Peces De Lorena Salazar Masso, Catalina Revelo

Theses and Dissertations

Esta tesis examina la deconstrucción de nociones tradicionales sobre la maternidad en dos novelas colombianas contemporáneas: La perra de Pilar Quintana y Esta herida llena de peces de Lorena Salazar Masso. Mediante un análisis literario feminista, se argumenta que ambas obras ofrecen representaciones transgresoras de la experiencia materna que desafían mandatos culturales normativos. Basándose en marcos teóricos de Simone de Beauvoir, Hélène Cixous y Susan Reisz, entre otros, se explora cómo estas novelas problematizan concepciones esencialistas de la maternidad como destino natural femenino. A través de una lectura atenta, se demuestra cómo estas narrativas dan voz a las sombras y …

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The Transnational Beat: Paramilitary Policing And America’S Associational Defense State, Ryan Reynolds May 2024

The Transnational Beat: Paramilitary Policing And America’S Associational Defense State, Ryan Reynolds

Theses and Dissertations

This study addresses the role of Cold War-era American law enforcement and intelligence institutions in shaping U.S. grand strategy and carrying out paramilitary operations. It examines American civil-military relations through the formal and informal relationships between the U.S. military, private organizations, and American law enforcement personnel within a framework I call “associational defense.” The concept provides a framework for observing and comprehending the existence of an American garrison state. While police institutions are civil institutions and not military organizations, law enforcement possessed a paramilitary mission throughout the Cold War and into the War on Drugs and the Global War on …

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The Effects Of Cover Crops And Reduced Tillage Practices On Soil Moisture, Cotton Yield, Irrigation Water Use, And Profitability, Carson David Roberts May 2024

The Effects Of Cover Crops And Reduced Tillage Practices On Soil Moisture, Cotton Yield, Irrigation Water Use, And Profitability, Carson David Roberts

Theses and Dissertations

Aquifer resources in the mid-southern USA are declining because of irrigation water use in row crops. This study assesses the effectiveness of conservation tillage and cover cropping systems in reducing irrigation water use while improving or maintaining cotton yield and profitability. The effects of different tillage and cover crop cropping systems on soil moisture, irrigation water use, cotton yield, and profitability were investigated near Stoneville, MS on a Dubbs silt loam (fine-silty, mixed, active, thermic Typic Hapludalfs) and a Bosket very fine sandy loam (fine-loamy, mixed, active, thermic Mollic Hapludalfs). Reducing tillage reduced irrigation water use by 3.3 cm ha-1, …

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Role Of A Precision Biotic And A Protease Fed Alone And In Combination To Dekalb White Laying Hens At Peak Production Phase, Elsianna Rodewald May 2024

Role Of A Precision Biotic And A Protease Fed Alone And In Combination To Dekalb White Laying Hens At Peak Production Phase, Elsianna Rodewald

Theses and Dissertations

A precision biotic (PB) in standard and reduced CP diets, and a protease (PRO) used alone and in combination with PB in the reduced CP diet were evaluated. Effects on performance, digestibility, and blood biomarkers were determined in Dekalb White hens from 24 to 42 weeks of age. Nine diets were fed: 1) a standard diet with a 17.5% formulated CP level (T1); 2) T1 with 500ppm PB (T2); 3) T1 with 700ppm PB (T3); 4) a reduced CP diet with a 15.5% formulated CP level (T4); 5) T4 with 500ppm PB (T5); 6) T4 with 700ppm PB (T6); 7) …

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Preparing To Come Home, Not Recidivate: Juvenile Offenders' Perceptions Of The Juvenile Justice System, Robbie Kaitlyn Salters May 2024

Preparing To Come Home, Not Recidivate: Juvenile Offenders' Perceptions Of The Juvenile Justice System, Robbie Kaitlyn Salters

Theses and Dissertations

Crimes committed by juvenile offenders are a significant concern of society. In response to this concern, the juvenile justice system addresses juvenile crimes in a developmentally appropriate manner. The goal of the juvenile justice system is to rehabilitate juvenile offenders and steer them from a life of crime and toward becoming productive members of society. Yet, some juvenile offenders continue to offend. While research has explored juvenile offenders’ perceptions of juvenile delinquency, re-entry, and recidivism, less is known about how the detention center prepares juvenile offenders for re-entry. The following study explores the perceptions of detained juvenile offenders in a …

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Magnetite-Laden Douglas Fir Biochar For Arsenic And Perfluoroalkyl Substances Contaminated Water Remediation And Struvite/Struvite-K Rich Douglas Fir Biochar For Soil Remediation, Paththinihannadige W. K. P. M. Rodrigo May 2024

Magnetite-Laden Douglas Fir Biochar For Arsenic And Perfluoroalkyl Substances Contaminated Water Remediation And Struvite/Struvite-K Rich Douglas Fir Biochar For Soil Remediation, Paththinihannadige W. K. P. M. Rodrigo

Theses and Dissertations

Ensuring the safety of drinking water, treating wastewater, and remediating soil are ongoing global concerns. Adsorption is a favorable substitute for traditional methods including coagulation, precipitation, membrane separation, and ion-exchange in water purification. Biochar-based sorbents are cheap and effective due to high density surface functional groups, which can retain a wide range of chemicals. This dissertation focused on three main projects involving magnetite (Fe3O4) and struvite/struvite-K (MgNH4PO4.6H2O/MgKPO4.6H2O) deposited high surface area Douglas fir biochar (DFBC) based engineered material for water and soil remediation. Chapter II focuses on toxic arsenic (V) contaminated wastewater remediation using magnetite particles dispersed Douglas fir biochar. …

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A Tripartite Study On Climate Change, Nitrogen-Sulfur Interactions, And Sulfur’S Role In Mississippi Corn Production, Ramandeep Kumar Sharma May 2024

A Tripartite Study On Climate Change, Nitrogen-Sulfur Interactions, And Sulfur’S Role In Mississippi Corn Production, Ramandeep Kumar Sharma

Theses and Dissertations

Three studies were conducted with the objectives as i) to assess the impact of climate change on Mississippi (MS) corn production using 1970 to 2020 datasets, employing autoregressive distributed lag model (ARDL), ii) A narrative review on the role of sulfur (S) in crop production, and iii) to investigate the corn response to multiple rates of nitrogen (N) and S. The first study findings revealed that the maximum temperature and precipitation had a negative effect on MS corn yield while minimum temperature and CO2 emissions posed a positive effect on corn yield. The second review study discussed the need for …

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“Freakish Man”: Sexual Blues, Sacred Beliefs, And The Transformation Of Black Queer Identity, 1870-1957., Xavier E. Sivels May 2024

“Freakish Man”: Sexual Blues, Sacred Beliefs, And The Transformation Of Black Queer Identity, 1870-1957., Xavier E. Sivels

Theses and Dissertations

“‘Freakish Man’: sexual blues, sacred beliefs, and the transformation of Black queer identity, 1870-1959” investigates how queer Black men expressed their gender and sexual identities. It follows how, from the days of Reconstruction to the modern civil rights movement, queer Black men used various aspects of Black culture—particularly the blues, working-class social culture, and charismatic religion—to form identities that departed from dominant Black and white norms. The “freakish man” emerged as queer Black men cultivated legible, subversive gender and sexual identities in sacred and secular spaces of working-class Black culture that prioritized masculine heterosexuality. Though queer Black men were briefly …

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The Performance Of Participation In The Medicare Quality Payment Program, Mary Atkinson-Smith May 2024

The Performance Of Participation In The Medicare Quality Payment Program, Mary Atkinson-Smith

Theses and Dissertations

This dissertation aims to explore the performance of health provider participation inthe Medicare Quality Payment Program by investigating the relationship among the performance metrics of value and quality and the capacities of geography, technology, finance, and administration. There is a theory-practice gap in the research that examines the impact of these capacities on the value and quality of clinical services delivered by healthcare providers participating in the Medicare Quality Payment Program. The study will address this theory-practice gap by applying the capacity-performance paradigm to better understand the influences of geographical, technological, financial, and administrative capacity have on the performance of …

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An Examination Of Teacher Candidates’ Planning Processes As They Seek To Integrate Technology Into Disciplinary Literacy Instruction, Kimberly O. Smith May 2024

An Examination Of Teacher Candidates’ Planning Processes As They Seek To Integrate Technology Into Disciplinary Literacy Instruction, Kimberly O. Smith

Theses and Dissertations

Demands of the workplace and society have made 21st-century knowledge and skills critical elements for success. As a result, the role of teachers in adequately preparing students to meet these demands continues to grow. National and state standards also call for increased attention to multimodal reading and writing. Today’s teachers must have the skills to effectively integrate technology into teaching and learning, supporting student development of digital reading and writing skills. Unfortunately, many teachers do not feel adequately prepared to do this (Hutchison & Reinking, 2011). Teacher education preparation programs must intentionally design programs to prepare teacher candidates for this …

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The Role Of Subsurface Dynamics In Cometary Outbursts, Ahmad Sohani May 2024

The Role Of Subsurface Dynamics In Cometary Outbursts, Ahmad Sohani

Theses and Dissertations

Comets, often referred to as cosmic time capsules, serve as invaluable repositories of information from the nascent phases of our solar system. Varying significantly in size, with nuclei ranging from a few kilometers to tens of kilometers in diameter, these celestial bodies are complex, porous aggregates of organic molecules, silicate particles, and entrapped volatile gases. Their orbits, which can be categorized into the Main Belt, the Kuiper Belt, and the Oort Cloud, offer distinct insights into their origins and the early conditions of the solar system. Understanding the physical processes occurring within these nuclei is critical, particularly in the context …

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Evaluating Efficacy Of Modified Barrier Operations To Limit Silver Carp Movements In The Mississippi Alluvial Valley, Joshua Stafford May 2024

Evaluating Efficacy Of Modified Barrier Operations To Limit Silver Carp Movements In The Mississippi Alluvial Valley, Joshua Stafford

Theses and Dissertations

Invasive Silver Carp (Hypophthalmichthys molitrix) have spread throughout the Mississippi River basin and threaten native species. The Lower Mississippi Alluvial Valley has numerous water-control structures. These structures could potentially be operated to limit expansions of invasive fishes. My goal was to examine the effects of two water-control structures on movements of Silver Carp within a floodplain network of waterbodies, including an oxbow lake (Eagle Lake; LA, MS). I monitored Silver Carp movements with an acoustic array and bi-monthly active tracking. No movements occurred through the structure managed to deter carp while nine carp passed through the structure that is not …

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Ultrasonographic Evaluation Of Splenic Nodules And Masses With B-Flow Interrogation Correlates To Cytologic Or Histopathologic Characterization As Benign Or Malignant., William Spigener Stevenson May 2024

Ultrasonographic Evaluation Of Splenic Nodules And Masses With B-Flow Interrogation Correlates To Cytologic Or Histopathologic Characterization As Benign Or Malignant., William Spigener Stevenson

Theses and Dissertations

The use of brightness mode (B-mode) ultrasound (US), color Doppler (CD), and power Doppler (PD) can all help evaluate and characterize splenic lesions. A relatively new non-Doppler technology used to evaluate vasculature called B-Flow helps overcome certain limitations of CD and PD that affect visualization of blood flow. There are no studies describing the use of B-Flow characterizing splenic lesions in dogs. A total of 97 splenic lesions were evaluated. Splenic lesions that were larger than 2 cm, distorted the splenic capsule, or accompanied free fluid were significantly associated with malignancy. Lesions with tortuous internal vessels on CD or B-Flow …

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Forest Structure And Edge Effects On Bee Functional Diversity In Private, Working Pine Forests, Madalyn Stoecker May 2024

Forest Structure And Edge Effects On Bee Functional Diversity In Private, Working Pine Forests, Madalyn Stoecker

Theses and Dissertations

Private, working forests provide unique opportunities for biodiversity research and management. Even-aged management often creates a heterogeneous mosaic of forest stands in southeastern loblolly pine (Pinus taeda) landscapes, with stands containing structural and compositional characteristics that support different bee functional groups. Interspersion of different structural conditions, combined with roads separating adjacent stands, leads to prevalence of edges across much of the landscape, which may have varying effects on bee species. I evaluated how landscape heterogeneity and presence of edge influences functional diversity in wild bee (Hymenoptera: Apoidea: Anthophila) communities during the summers of 2022 and 2023. Open conditions within early …

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Photocatalytic Disinfection Of Microbes In Water By Using Titanium Dioxide (Tio2) – Decorated Biochar, Aleria Story May 2024

Photocatalytic Disinfection Of Microbes In Water By Using Titanium Dioxide (Tio2) – Decorated Biochar, Aleria Story

Theses and Dissertations

Waterborne diseases, particularly those caused by microbial contamination such as Esche?richia coli (E. coli), present a global health challenge. This study centers on developing TiO2- decorated biochar nanocomposites, serving as a high-performance photocatalyst to combat E. coli contamination in water sources. TiO2 nanoparticles were synthesized using Flame Spray Pyrolysis (FSP) and deposited onto biochar. Structural and chemical properties were assessed using Scan?ning Electron Microscopy (SEM), X-ray Diffraction (XRD), and Fourier-Transform Infrared (FT?IR) spectroscopy. The nanocomposites were tested for photocatalytic disinfection efficiency under UV–Vis irradiation and petrifilm imaging data indicate significant E. coli inactivation, highlight?ing the potential of these nanocomposites for …

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Maternal And Paternal Appearance-Related Pressure And Body Esteem In Emerging Adults: Moderation By Self Compassion And Gender, Alligrace Story May 2024

Maternal And Paternal Appearance-Related Pressure And Body Esteem In Emerging Adults: Moderation By Self Compassion And Gender, Alligrace Story

Theses and Dissertations

Previous research has shown that appearance-related pressures from multiple sources can influence body esteem in emerging adults. Furthermore, research has shown that self-compassion and gender play a role in body image and the relation between sociocultural pressures and body esteem. Less research has examined how these variables interact in their association with body esteem in emerging adults. Thus, the current study sought to assess these interactions. Participants (N = 877; 492 women) were primarily White (78.9% for women and 76.4% for men) and ranged in age from 18 to 28 (M = 18.70 for women and 19.10 for men). Participants …

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Mitigating Delay And Coupling Effects In A High-Speed Pmsm Drive Using An Optimal Multivariable Control Approach, Kazi Nishat Tasnim May 2024

Mitigating Delay And Coupling Effects In A High-Speed Pmsm Drive Using An Optimal Multivariable Control Approach, Kazi Nishat Tasnim

Theses and Dissertations

In this thesis, an optimal multivariable current control method is presented for the highspeed permanent magnet synchronous motor (HS-PMSM). The HS-PMSMs have growing applications in the industry. One of their major challenges is the low switching to fundamental frequency ratio (SFR). At high speed and low SFR, the control time delays including the digital, the PWM, and sensor delays become more pronounced and lead to oscillations and even instabilities. A well-known method for delay compensation is to advance the phase angle of control input for a known amount. In practice, the exact delay is unknown, and mismatch in the compensating …

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Characterization Of The Behavioral Patterns In Salmonella Biofilms Across Different Serovars And Environmental Conditions, Hudson Thames May 2024

Characterization Of The Behavioral Patterns In Salmonella Biofilms Across Different Serovars And Environmental Conditions, Hudson Thames

Theses and Dissertations

Biofilms have the potential to form on various abiotic surfaces and have been found to be more resistant to environmental stressors. Therefore, there is a need to investigate the biofilm forming ability and characteristics of Salmonella strains isolated from poultry meat. These studies characterized the biofilm forming capabilities of 5 Salmonella strains on abiotic surfaces, and investigated changes in gene expression that are associated with Salmonella biofilm formation in 3 Salmonella strains. Salmonella biofilms were cultivated on stainless steel, concrete, rubber, and polyethylene under static and shear stress conditions. Biofilm matrix density was determined using a modified crystal violet assay, …

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A Modular Compact Kw-Class Ipos Dc-Dc Converter For Pulsed Power Applications, Walker Joseph Thames May 2024

A Modular Compact Kw-Class Ipos Dc-Dc Converter For Pulsed Power Applications, Walker Joseph Thames

Theses and Dissertations

Pulsed power systems are concerned with the delivery of significant amounts of power in a greatly condensed time frame. To achieve this, energy is often stored in a capacitor, where it can be rapidly discharged. Certain applications require repeated charging and discharging of the load capacitor in a specifically modulated manner; special power electronics systems must be developed for these situations. Existing systems on the market sacrifice a small form factor for greater pulsed power output. The proposed design outlines the development of a compact pulsed power capacitor charger capable of charging a load capacitor to high voltages at a …

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Southern Pine Beetle Colonization: Dispersal Phenology And Host Selection, John William Thomason May 2024

Southern Pine Beetle Colonization: Dispersal Phenology And Host Selection, John William Thomason

Theses and Dissertations

The southern pine beetle, Dendroctonus frontalis Zimmermann (Coleoptera: Curculionidae), is a prime example of a bark beetle of high ecological and economical importance. As these bark beetles adapt to a changing environment, forest managers must continue to evolve management strategies to improve forest resilience to these pests. Herein, we examined the validity of phenological trap timing cues for the annual spring D. frontalis risk assessment survey and found the traditional use of flowering dogwood (Cornus florida) (Cornaceae) bloom occurred an average of 3 weeks after peak D. frontalis spring flight activity. We also examined the natal host influence on adult …

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Does Attendance In Head Start And Early Head Start Programs Influence Social And Emotional Development In Young Children?, Mary Elizabeth Thorne May 2024

Does Attendance In Head Start And Early Head Start Programs Influence Social And Emotional Development In Young Children?, Mary Elizabeth Thorne

Theses and Dissertations

Social and emotional development is a crucial domain of development that influences child outcomes. Apart from a child’s family, early care and education (ECE) programs offer opportunities to develop critical skills that promote academic achievement, emotion regulation, cognition, and literacy. There are achievement gaps in these areas when comparing children from low and high socioeconomic backgrounds, lending to the federal legislation to form Head Start and Early Head Start programs nationwide. While these programs have attendance mandates, the national attendance average is below the requirements, which may hinder the full benefits of Head Start and Early Head Start programs. Using …

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A Determination Of Host Receptors To Choline-Binding Proteins Of Streptococcus Pneumoniae, Milisen Tvarkunas May 2024

A Determination Of Host Receptors To Choline-Binding Proteins Of Streptococcus Pneumoniae, Milisen Tvarkunas

Theses and Dissertations

Streptococcus pneumoniae (pneumococcus), a gram-positive bacterium, is commensal to the human nasopharynx. It is also a common cause of respiratory tract infections and multiple invasive diseases worldwide. Pneumococci attach to the nasopharynx, lung, and vascular endothelial cells, which contributes to colonization as well as to the development of pneumonia, bacteremia, and meningitis. Choline binding proteins (CBPs) are a unique set of cell wall proteins conserved within pneumococci. CBPs bind noncovalently to the phosphocholine of the cell wall through choline binding domains. The choline binding domains of the CBPs are highly conserved; however, they are diverse in their affinities and functions …

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Setting The Table: A Study Of Grassroots Organization Political Training Program And Black Women Interests To Run For Local Government., Adrian Shonna Tillman May 2024

Setting The Table: A Study Of Grassroots Organization Political Training Program And Black Women Interests To Run For Local Government., Adrian Shonna Tillman

Theses and Dissertations

The comparative study aims to assess the efficacy of grassroots organizations that provide political training programs for Black women to equip them for local office candidacy. An online survey was performed among alums to assess the influence of enrolling in these programs on participants' aspirations to pursue and actively run for local office. The alum survey comprised thirty-four questions to evaluate if Black women had obtained the essential abilities for political candidacy. The poll aims to determine the perceived strengths, problems, and opportunities for Black women participating in political leadership training programs. The surveys aimed to collect important information about …

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Identity Status And Identity Style In The Emo Subculture: Exploring Identity Between Emo Vs. Non-Emo Emerging Adults, Melanie Rebekah Uggen May 2024

Identity Status And Identity Style In The Emo Subculture: Exploring Identity Between Emo Vs. Non-Emo Emerging Adults, Melanie Rebekah Uggen

Theses and Dissertations

Emerging adulthood can be viewed as a time of exploration and experimentation for college-aged adults (Arnett, 2000). As individuals begin trying on their possible selves as they explore personal identity, they can gravitate to peer groups that fit their interests. For some, that can mean being drawn to the emo subculture. This subculture focuses on its fashion, often based on dyed black hair, dark clothing, studded accessories, and black eyeliner (Chernoff & Widdicombe, 2015), centered around music with lyrics often interpreted as depressive or angst?ridden. Emo subculture has been subject to criticism and stereotypes, especially those with mental health themes …

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Optimizing Water, Nitrogen, And Row Patterns For Irrigated Corn And Soybean In The Mississippi Delta, Amilcar Jose Vargas Loyo May 2024

Optimizing Water, Nitrogen, And Row Patterns For Irrigated Corn And Soybean In The Mississippi Delta, Amilcar Jose Vargas Loyo

Theses and Dissertations

Integrating water-saving technologies with optimized nutrient management strategies provides opportunities for sustainable agriculture in the Mississippi Delta. Three studies were conducted to determine the effects of irrigation systems, row patterns, and nutrient management strategies on corn and soybeans. The first study determined the effects of irrigation, row pattern, and nitrogen (N) placement methods on corn (Zea mays L.) productivity and N use efficiency. The effects of N placement methods were only evident in 2021 when the rainfall events were more pronounced than in 2020. Regardless of the row pattern, placing N with one knife increased corn grain yield and the …

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An Open-Source Digital Twin Of The Wire Arc Directed Energy Deposition Process For Interpass Temperature Regulation, Ryan Mitchell Stokes May 2024

An Open-Source Digital Twin Of The Wire Arc Directed Energy Deposition Process For Interpass Temperature Regulation, Ryan Mitchell Stokes

Theses and Dissertations

The overall goal of this work is to create an open-source digital twin of the wire arc directed energy deposition process using robot operating system 2 for interpass temperature regulation of a maraging steel alloy. This framework takes a novel approach to regulating the interpass temperatures by using in-situational infrared camera data and a closed loop feedback control that is enabled by robot operating system 2. This is the first implementation of robot operating system 2 for wire arc directed energy deposition and this framework outlines a sensor and machine agnostic approach for creating a digital twin of this additive …

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Integrating Building Information Modeling (Bim) And Blockchain Technology In The Pre-Construction Planning Processes, Abdul Wahab May 2024

Integrating Building Information Modeling (Bim) And Blockchain Technology In The Pre-Construction Planning Processes, Abdul Wahab

Theses and Dissertations

Adopting new technologies is a relatively slow process in the construction industry due to the nature of activities involved in construction projects. However, with the current evolution in Information Technology (IT) and other computing technologies it is essential to incorporate them into the construction world to enhance and upgrade some critical activities to yield higher accuracy and productivity. The current literature provides a good overview of the construction industry's modern technology. Still, it lacks specific details about the factors that contribute the most in the two pre-construction processes, i.e., cost estimation and contracts. Therefore, this dissertation expands the current literature …

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A Day In The Life Of A Farm-Fluencer: Can Agriculturalists Change Public Perceptions Towards Agriculture By Using Social Media, Josey M. Webb May 2024

A Day In The Life Of A Farm-Fluencer: Can Agriculturalists Change Public Perceptions Towards Agriculture By Using Social Media, Josey M. Webb

Theses and Dissertations

As generations have moved away from the farm, the population has become less aware of the practices behind the agriculture industry. However, people are becoming interested in how their food is produced. Since most of the population has not received an agriculture education, they look towards social media as their source of information. Social media has become a platform for sharing opinions and knowledge on certain topics. It has also been studied the perceptions of others can be influenced by emotionalizing and repeating stories related to the topic. Farmers and ranchers are now sharing their knowledge and experiences regarding agriculture …

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“A Hiker Who Is Strong” Is Stronger Than “A Strong Hiker”: Modifier Position Affects Noun Perception, Peter John Weber Ii May 2024

“A Hiker Who Is Strong” Is Stronger Than “A Strong Hiker”: Modifier Position Affects Noun Perception, Peter John Weber Ii

Theses and Dissertations

Simple shifts within the syntactic structure of a sentence can have significant effects on the cognitive processes involved in language comprehension (Deckert, 2015; Ellis, 2002; Ferreira, 2003). Modifier position is one such syntactic element that has shown the importance of structure as demonstrated by Karimi et al. (2019). Post-modified words (e.g., a “peasant who was highly educated”) are encoded more robustly and are retrieved more easily than pre-modified words (e.g., a “highly educated peasant”). We explored the potential influence of modifier position on statement believability, namely, how much people believe a statement they have not heard before in Experiment 1. …

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Application And Feasibility Of Visible-Nir-Mir Spectroscopy And Classification Techniques For Wetland Soil Identification, Caleb Whatley May 2024

Application And Feasibility Of Visible-Nir-Mir Spectroscopy And Classification Techniques For Wetland Soil Identification, Caleb Whatley

Theses and Dissertations

Wetland determinations require the visual identification of anaerobic soil indicators by an expert, which is a complex and subjective task. To eliminate bias, an objective method is needed to identify wetland soil. Currently, no such method exists that is rapid and easily interpretable. This study proposes a method for wetland soil identification using visible through mid-infrared (MIR) spectroscopy and classification algorithms. Wetland and non-wetland soils (n = 440) were collected across Mississippi. Spectra were measured from fresh and dried soil. Support Vector Classification and Random Forest modeling techniques were used to classify spectra with 75%/25% calibration and validation split. POWERSHAP …

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