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Analyses Of Effect Indices Across Single-Case Research Designs In Counseling, Cian L. Brown
Analyses Of Effect Indices Across Single-Case Research Designs In Counseling, Cian L. Brown
Graduate Theses and Dissertations
Single case research design (SCRD) is a common methodology used across clinical disciplines to determine treatments effectiveness by comparing treatment conditions to baseline conditions in individual cases, usually among researchers working with smaller samples. Although popular within behavioral disciplines such as special education and behavioral analysis, studies have begun to emerge in counseling. However, guidance and current understanding of the use of SCRD in counseling is limited. A content analysis of counseling journals from 2003 to 2014 yielded only 7 studies using SCRD. In 2015, the flagship counseling journal, Journal of Counseling and Development, published a special issue on the …
Verification Of Astm Centrifugation Equations For Soil Suction Determination, Esteban Maclein Miranda Pinzon
Verification Of Astm Centrifugation Equations For Soil Suction Determination, Esteban Maclein Miranda Pinzon
Graduate Theses and Dissertations
The unit correction constant (B) in the ASTM D6836 standard needs to be evaluated. The B-value was proposed to be 0.00548 instead of 0.00553. This apparent discrepancy led to an investigation comparing the predicted and measured suction values for high air entry (HAE) ceramic disks. A Beckman-Coulter Model J6-MI six-bay centrifuge and a WP4C Dewpoint Potentiameter were used in the testing program. HAE ceramic disks rated with bubbling pressures of 3-bar and 5-bar were used as analogue soil specimens. The HAE ceramic disks were spun in the small-scale centrifuge to apply prescribed suction amounts and then placed in the WP4C …
Estimation Of Gross Primary Productivity Of Rice In Arkansas Using The Vegetation Photosynthesis Model, Riasad Bin Mahbub
Estimation Of Gross Primary Productivity Of Rice In Arkansas Using The Vegetation Photosynthesis Model, Riasad Bin Mahbub
Graduate Theses and Dissertations
An estimate of the gross primary productivity (GPP) of rice fields can be instrumental to understand their harvest yield and to fulfill an array of agricultural monitoring needs. One of the most common satellite-based models to estimate GPP is the vegetation photosynthesis model (VPM). In this study, we use the VPM model for rice cropland in Arkansas and validate our findings against 16 site-years in-situ data (eddy covariance (EC)). At the site scale, results validated against 16 site-years have shown that the VPM with site information (R2 = 0.71, MAE = 2.90 g C m-2day- 1, and RMSE = 4.04 …
Raised Field Agriculture On The North Coast Of Peru: Environmental Investigations In The Casma Valley, Seth Price
Raised Field Agriculture On The North Coast Of Peru: Environmental Investigations In The Casma Valley, Seth Price
Graduate Theses and Dissertations
The Casma Valley, located on the central-northern coast of Peru, is home to a system of raised agricultural fields unique to the region. Relicts of pre-Hispanic culture, these fields are unusually well-preserved and primarily unaffected by modern agriculture. Multiscalar investigations of the Casma Valley raised fields revealed distinct anthropogenic soil alteration and landscape modification patterns. This dissertation assesses why Late Chimú (1300-1470 CE) societies in the Casma Valley converted ca. 2 km2 of land into raised agricultural field systems. This project is designed to investigate the composition and operation of raised fields, the short and long-term effects of field operation, …
Analyzing The Adoption, Cropping Rotation, And Impact Of Winter Cover Crops In The Mississippi Alluvial Plain (Map) Region Through Remote Sensing Technologies, Zobaer Ahmed
Graduate Theses and Dissertations
This dissertation explores the application of remote sensing technologies in conservation agriculture, specifically focusing on identifying and mapping winter cover crops and assessing voluntary cover crop adoption and cropping patterns in the Arkansas portion of the Mississippi Alluvial Plain (MAP). In the first chapter, a systematic review using the PRISMA methodology examines the last 30 years of thematic research, development, and trends in remote sensing applied to conservation agriculture from a global perspective. The review uncovers a growing interest in remote sensing-based research in conservation agriculture and emphasizes the necessity for further studies dedicated to conservation practices. Among the 68 …
Ways To Endure, Skyler J. Maggiore
Ways To Endure, Skyler J. Maggiore
Graduate Theses and Dissertations
Ways to Endure is an installation of photographic-based inquiry through light, steel, emulsion, glass and, healing welted skins. Topographic satellite imagery of flood-prone peaks and valleys within my rural home county are abstracted by a Google Earth glitch. Acupuncture needles are a reminder of sorrow and relief and an indicator of boundary and location. The Fresnel lens has a historical responsibility as a beacon, a tool of survival and navigation, originally used to concentrate and project light in lighthouses, and fire starters in survival kits. The Fresnels are fixed in front of intimate portraits to magnify and abstract. This installation …
Short-Term Response In Soil Health To Management Practices Within Large- And Small-Scale Cropping Systems In Arkansas, Torri Holder
Short-Term Response In Soil Health To Management Practices Within Large- And Small-Scale Cropping Systems In Arkansas, Torri Holder
Graduate Theses and Dissertations
Improving soil health is a growing area of interest within large- and small-scale agricultural systems in Arkansas as producers face increasing input costs, increased awareness of variability and intensity in extreme weather events, decreasing resource availability, and suboptimal productivity related to environmental degradation. Practices aimed at improving soil health such as cover cropping and the use of organic amendments are increasingly recommended and adopted; however, research on optimal management in the Mid-South is lacking. Two studies were conducted to evaluate the effectiveness of soil health management under both small- and large-scale farming operations in Arkansas. The objective of the small-scale …
Nutrient Responses To Hippuric Acid In Sheep Urine Applied To Pasture Soil Cores, Ethan Avery Collins
Nutrient Responses To Hippuric Acid In Sheep Urine Applied To Pasture Soil Cores, Ethan Avery Collins
Graduate Theses and Dissertations
Hippuric acid is a breakdown product of tannins, which bind with proteins in the animal rumen and slow down protein metabolism, thus increasing nitrogen (N) retention in the animal. Increased hippuric acid concentration in bovine and ovine urine applied to soil may decrease rates of nitrification, denitrification, and nitrous oxide fluxes in pasture soils. Additionally, condensed tannins have increased rates of carbon mineralization when incorporated in humus and leaf litter. To evaluate effects of hippuric acid concentration, treatments of urine from sheep fed a tannin-supplemented diet, synthetic urine, or urea controls were applied to intact soil cores seeded with crabgrass …
Investigation Of The Flow Field In The Jack Rabbit Ii Mock Urban Environment Field Tests Using A 1:50 Scale Wind Tunnel Model, Paulo Victor De Freitas Lopes
Investigation Of The Flow Field In The Jack Rabbit Ii Mock Urban Environment Field Tests Using A 1:50 Scale Wind Tunnel Model, Paulo Victor De Freitas Lopes
Graduate Theses and Dissertations
Accidental release of toxic chemicals can put workers and nearby populations at significant risk. Consequence assessment of accidents in urban environments is of particular interest. Urban geometries create wind channels between buildings, along with particularly dangerous areas downwind of buildings, where near-stagnant flow is present. Furthermore, recirculation zones can be formed between buildings, trapping high concentrations of toxic gases at ground level, particularly for denser-than-air gases. In 2015, the Department of Homeland Security conducted the Jack Rabbit II Field Test (JR-II) at Dugway Proving Ground, UT. During JR-II, chlorine was released at the center of a Mock Urban Environment (MUE) …
Dietary Histidine: Broiler Responsiveness With And Without Endogenous Histidine Reserve Consideration, Kenneth Blake Nelson
Dietary Histidine: Broiler Responsiveness With And Without Endogenous Histidine Reserve Consideration, Kenneth Blake Nelson
Graduate Theses and Dissertations
In the past, histidine warranted little concern from poultry nutritionists because it was seldom deficient in practical broiler diets. With most essential amino acids now commercially available as feed-grade forms to partially replace intact protein ingredients, histidine and its minimum in least-cost formulation are receiving fresh attention. Published histidine requirement data for broilers are sparce, and many of these studies have been conducted on males within the first three weeks post-hatch. Moreover, rudimentary dose-response experimental designs may not be applicable to estimate histidine requirements in later growth periods because histidine is uniquely stored within the body. In times of dietary …
Runoff Water Quality And Crop Growth As Affected By Wastewater-Derived Struvite, Machaela Morrison
Runoff Water Quality And Crop Growth As Affected By Wastewater-Derived Struvite, Machaela Morrison
Graduate Theses and Dissertations
Mined phosphate rock, used to produce phosphorus (P) fertilizers, is a finite resource. Struvite (MgNH4PO4 • 6H2O) that has been synthetically produced from a stock solution of known P and nitrogen (N) concentrations has been shown to be an effective, alternative fertilizer-P source for various crops. However, little is known about the runoff-water-quality implications from and the crop response to soil application of struvite created from an actual municipal wastewater source. This study consisted of two objectives: i) to evaluate the effects of soil [i.e., Creldon (Oxyaquic Fragiudalf), Dapue (Fluventic Hapludoll), Roxana (Typic Udifluvent), and Calloway (Aquic Fraglossudalf) series], fertilizer-P …
Circuitry And Semiconductor Studies For Making A Graphene Energy Harvesting Device, Ferdinand Harerimana
Circuitry And Semiconductor Studies For Making A Graphene Energy Harvesting Device, Ferdinand Harerimana
Graduate Theses and Dissertations
Freestanding graphene has constantly moving ripples. Due to its extreme flexibility, graphene responds to ambient vibrations and changes its curvature from concave to convex and vice versa. During a ripple inversion 10,000 atoms move together, suggesting the presence of kinetic energy which can be harvested. In this study we present circuitry and semiconductor studies for harvesting energy from graphene vibrations. The goal of the study is to develop a graphene energy harvesting chip which can serve as a battery replacement in low power electronics. In the first study we determined the best circuit for harvesting vibrational low power. To do …
A Comparative Study Of Techniques For Non-Monotonic Dependence With Emphasis On Sensitivity To Sample Size, Noise Level And Computational Attributes, Fariha Tasnim
Graduate Theses and Dissertations
Evaluating association between variables is often of interest by many researchers. To serve this purpose, different association measures have been developed. However, type of relation between variables affects the degree of relationship. Hence, detection of the rela- tionship between variables is germane to measuring the correlation coefficient. With that mindset, here we explored six non-monotonic measure of association techniques and com- pared them with three classical approaches. Due to inconsistency in definition and range of different techniques, it is not feasible to compare the correlation estimates as their nature of variability differ. Therefore, we used permutation test based on Monte …
Securing Rice Safety Through Innovative Radiative Heat Treatment And Proper Storage, Faith Achieng Ouma
Securing Rice Safety Through Innovative Radiative Heat Treatment And Proper Storage, Faith Achieng Ouma
Graduate Theses and Dissertations
Securing the microbial safety of rice is a rising priority within the food industry, especially when used as an ingredient to manufacture ready-to-eat, minimally-processed products. Mold contamination is typically the most problematic for rice because certain species of Aspergillus produce toxic secondary metabolites known as aflatoxins, rendering the grain unfit for human and animal consumption. The objectives of this study are to: (1) investigate the effectiveness of using high-power (915 MHz frequency), short-duration microwaves (MWs) to inactivate microbes on rough rice; (2) use a three-level screening design to determine which storage factors, such as temperature, relative humidity (RH), storage duration, …
Photon Counting Statistics Of Classical And Quantum Light Sources, Luis Felipe Morales Bultron
Photon Counting Statistics Of Classical And Quantum Light Sources, Luis Felipe Morales Bultron
Graduate Theses and Dissertations
Multiple sources of light, including coherent light, thermal light, light from a degenerate parametric oscillation and resonance fluorescence from a two level coherently driven atom are considered for the analysis of their wait time statistics. We include the second order normalized correlation function and Mandel's Q parameter for brief discussion. A general framework to analyze the generalized conditional and unconditional wait time distributions is also obtained in order to understand the photo-count statistics of the light sources included in this work. Average and variance of wait times with respect to both unconditional and conditional wait time distribution are also obtained …
Etching Of Silicon Wafer In Preparation Of Graphene Transfer, Floyd T. Lancaster Iii
Etching Of Silicon Wafer In Preparation Of Graphene Transfer, Floyd T. Lancaster Iii
Graduate Theses and Dissertations
Following the research done on graphene looking at its unique properties it has been found that graphene can be used as a varying capacitor. What has been observed is that graphene acts almost like a torrential ocean constantly fluctuating. What we use is a silicon wafer with multiple etched layers to create a stable platform on which to capture this energy. In this paper we will discuss the general setup and step-by-step procedures required to create a functioning variable capacitor out of graphene, gold, and Silicon dioxide (SiO2) substrate. Electron Beam Lithography (EBL) is used to create the initial design …
Towards Multi-Modal Explainable Video Understanding, Kashu Yamazaki
Towards Multi-Modal Explainable Video Understanding, Kashu Yamazaki
Graduate Theses and Dissertations
This thesis presents a novel approach to video understanding by emulating human perceptual processes and creating an explainable and coherent storytelling representation of video content. Central to this approach is the development of a Visual-Linguistic (VL) feature for an interpretable video representation and the creation of a Transformer-in-Transformer (TinT) decoder for modeling intra- and inter-event coherence in a video. Drawing inspiration from the way humans comprehend scenes by breaking them down into visual and non-visual components, the proposed VL feature models a scene through three distinct modalities. These include: (i) a global visual environment, providing a broad contextual understanding of …
The Multiverse Argument For The Existence Of God, Michael Dover
The Multiverse Argument For The Existence Of God, Michael Dover
Graduate Theses and Dissertations
The Fine-Tuning Argument for the Existence of God is one of the most powerful arguments in favor of God’s existence. Perhaps the most common objection to this argument involves the Multiverse Theory, which posits an infinite or very large multiverse, adequately explaining the fine-tuning of the universe without positing an intelligent designer. Thus, the Multiverse Theory is often posited as a way of maintaining Atheism. In this paper, I argue that the Atheistic Multiverse View is untenable: if the multiverse exists, God or gods are highly likely to exist as well. Additionally, this paper explores topics like: the conceivability of …
Generating Health-Promoting Bioactive Compounds And Nanoporous Materials From Rice Processing Byproducts Via Supercritical Carbon Dioxide Technology, Sumanjot Kaur
Graduate Theses and Dissertations
Rice husk and bran, byproducts of rice processing, are generated in large quantities (~30-40% of the total rice weight) and are discarded as waste or burned in an open field, creating a major disposal problem for the rice industry. However, these byproducts contain high-value compounds, including phytochemicals, fiber, and proteins. Therefore, the goal of this study was to generate high-value food ingredients from rice processing byproducts using a green, innovative approach based on supercritical carbon dioxide (SC-CO2) technology. Specific objectives were to (i) extract health-promoting phytochemicals from rice husk and (ii) convert rice bran into nanoporous materials using SC-CO2. First, …
Examining The Perceived Implications Of Eliminating The Stem Career Cluster In Kansas, Trevor Maiseroulle
Examining The Perceived Implications Of Eliminating The Stem Career Cluster In Kansas, Trevor Maiseroulle
Graduate Theses and Dissertations
Career and technical education (CTE) has been an effort in the United States to help bring quality career preparation programs to secondary schools nationwide, with many career clusters allowing schools to teach various courses. For example, the science, technology, engineering, and mathematics (STEM) career cluster provides interdisciplinary approaches and hands-on activities to help students succeed in postsecondary ventures. One of the integral subjects in STEM education is technology and engineering education (T&EE), which has been synonymous with STEM education for decades. T&EE is a discipline which has been around for over a century, nevertheless it may be confused with CTE. …
Who Sings And Who Falls Silent? A Spatial And Social Analysis Of Virgilian Graffiti In Pompeii, Rachel Murray
Who Sings And Who Falls Silent? A Spatial And Social Analysis Of Virgilian Graffiti In Pompeii, Rachel Murray
Graduate Theses and Dissertations
This study analyzes Pompeian domestic spaces in which graffiti that quote the works of Virgil have been found. This is particularly compelling because of the Aeneid’s status as a ‘national epic,’ simultaneously ‘high’ culture and seemingly part of the ‘common’ imagination. In the past scholars have argued that the presence of Virgilian graffiti was not indicative of widespread interaction with Virgil, and that a select few individuals were responsible for these quotations. Drawing from ideas proposed by modern graffiti studies and spatial theorists and employing the methodology developed by the Virtual Pompeii Project, this study uses network analysis measures to …
Double-Sided Cooled Power Modules For Electric Vehicles, Riya Paul
Double-Sided Cooled Power Modules For Electric Vehicles, Riya Paul
Graduate Theses and Dissertations
Double-sided cooled (DSC) power modules in conjunction with Silicon Carbide (SiC) power devices are expected to significantly elevate the performance of the next-generation electric vehicle power inverters. The double-sided cooling enables maximum heat dissipation, resulting in higher power density. SiC power devices, with their fast-switching speeds, reduce the power losses for higher efficiency. A half-bridge power module consisting of 13 mΩ 1.2 kV SiC devices is used for this work. A baseline DSC power module was designed, fabricated, and tested. This unique design uses truncated rectangular copper connection blocks for better heat dissipation from the device top side compared to …
Characterizing Logistics Operations Within A Federal Staging Area For Hurricane Response: A Qualitative Analysis Of Federal, State And Local Perspectives, Jannatul Shefa
Graduate Theses and Dissertations
A successful deployment of logistics operations following a disaster is a collective contribution of federal, state, and local entities to ascertain an efficient and effective response. This research analyzes data from interviews with disaster response logistics experts from these entities. The objective is to investigate the information sources and planning processes used in these organizations to plan vehicle routes for critical resource deliveries to impacted areas. Special attention is directed to the impacts of incomplete knowledge of infrastructure status, such as road disruptions due to debris or flooding. Supported by both qualitative and quantitative evidence, the study finds that incomplete …
Comparing Predictive Performance Of Garch And Stochastic Volatility Models, Swapnaneel Nath
Comparing Predictive Performance Of Garch And Stochastic Volatility Models, Swapnaneel Nath
Graduate Theses and Dissertations
This paper compares the predictive performance of two commonly used financial models, the Generalized Auto-Regressive Conditional Heteroskedasticity (GARCH) model, and the Stochastic Volatility model. Both techniques are used in the finance literature to model returns on an asset; the main difference between the two is that the former holds volatility as deterministic, whereas the latter treats it as a stochastic component. Three 10-year periods (2006-15, 2008-17, and 2010-19) of returns of the S&P-500 Index are used to train the two models. The parameter estimation is done using Hamiltonian Monte Carlo. Then, using Sequential Monte Carlo updates, returns for 2016, 2018, …
Social And Economic Changes In A Mid-Size University City: The Case Of South Fayetteville, Arkansas, Korab Vranovci
Social And Economic Changes In A Mid-Size University City: The Case Of South Fayetteville, Arkansas, Korab Vranovci
Graduate Theses and Dissertations
The constant growth of the city of Fayetteville is attributed to regional economic growth and an increase in student enrollment, to name a few. As a middle-sized college city, Fayetteville is an anchor city with the University of Arkansas as its anchor institution. These changes have caused a significant increase in the city's urban development and neighborhood changes. This research identifies three areas of work with the potential to assist in the study of the urban redevelopment in the South Fayetteville neighborhoods: (1) the social demographics, economic, and land use changes in neighborhood populations, (2) the stakeholder's perceptions toward city …
Poly(Ionic Liquid)S For Magnetic, Ionic, And Electrical Stimuli-Responsive Applications, Kayla Ann Foley
Poly(Ionic Liquid)S For Magnetic, Ionic, And Electrical Stimuli-Responsive Applications, Kayla Ann Foley
Graduate Theses and Dissertations
Poly(ionic liquid)s (PILs) are a fascinating subclass of strong polyelectrolytes formed from polymerizable ionic liquids. As a result of their unique properties and counterion exchangeability, PILs can exhibit conformation structure or material property changes in response to external stimuli such as changes in pH/ionic environment, magnetic fields, and electric potentials. In Chapter 1, a comprehensive review of PILs design as well as their stimuli-responsive behavior is provided. Additional motivation for each dissertation chapter is also discussed. In Chapter 2, magnetically responsive PILs (MPILs) are developed from complexing paramagnetic salts with a random PIL copolymer containing a metal-coordinating co-monomer, acrylamide. A …
Chemostratigraphic And Paleoclimatic Studies Of Cloverly Formation, Northern Wyoming, U.S.A, Queen Amarachi Kalu
Chemostratigraphic And Paleoclimatic Studies Of Cloverly Formation, Northern Wyoming, U.S.A, Queen Amarachi Kalu
Graduate Theses and Dissertations
The Early – Late Cretaceous transition in Western North America recorded a period of rapid climatic and tectonic change in Earth’s history. Major climate events associated with large igneous province eruptions caused several instances of ocean anoxic events (OAE) and perturbations to the global carbon (C) – cycle. These perturbations to the global C-cycle are observed in the bulk organic C record of both marine and terrestrial deposits and can be used to correlate units across major depositional basins. Major efforts are being made to generate time-constrained palaeontologic and paleoclimate information from the North American Cordilleran foreland basin and C-isotope …
Cultural Competence Among Child Life Professionals, Rachel Burger
Cultural Competence Among Child Life Professionals, Rachel Burger
Graduate Theses and Dissertations
There is an ever-growing need for individuals to work towards cultural competence, especially when those individuals work in healthcare. As healthcare professionals with backgrounds in child development and who provide emotional and psychological support to diverse pediatric patient populations in a variety of different sectors, child life specialists (CLS) and Certified Child Life Specialists (CCLSs) have an even greater need for understanding cultural competence (Thompson, 2009). The purpose of the current study was to examine the cultural competency levels of CCLSs, the type of cultural competence professional development units (PDUs) they participate in, and their perspectives on cultural competence in …
Integrated And Monolithic Iii-Nitride Devices Grown By Mbe, Rohith Allaparthi
Integrated And Monolithic Iii-Nitride Devices Grown By Mbe, Rohith Allaparthi
Graduate Theses and Dissertations
III-Nitride (III-N) semiconductors with wide bandgap (WBG) characteristics offer promising advancements for high power density, high voltage, and high-frequency applications, presenting a promising alternative to traditional silicon (Si) technology. However, native substrate material for the majority of WBG semiconductors is still not commercially affordable. Because of its highly mature progression, utilizing standard Si wafers as substrates is a cost-effective alternative. This dissertation explores the development of electronic devices based on III-N thin films, grown monolithically via molecular beam epitaxy (MBE), followed by several processing techniques. Initially, a heterojunction p-n diode is realized, incorporating the growth of single-crystal WBG AlN films …
Risk-Returns Of Forward Contracting Southern Row Crops With Crop Revenue Insurance, Chandan Bhattarai
Risk-Returns Of Forward Contracting Southern Row Crops With Crop Revenue Insurance, Chandan Bhattarai
Graduate Theses and Dissertations
This study evaluated the risk and return associated with various levels of forward contracting for southern row crops, specifically corn, soybean, and rice, in conjunction with different coverage levels of the Revenue Protection (RP) crop insurance program and government support plans. Forward contracting is a strategy to manage price risk by transferring ownership of physical grain from a seller to a buyer at a pre-agreed time. RP is a return-based crop insurance program offering coverage levels ranging from 50-85 percent in 5 percent increments, which allows producers to hedge against yield or price risks. Additionally, the study analyzed the effectiveness …