Open Research Oklahoma (Oklahoma State Univ.)
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Andragogy: Application to graduate student speech language pathology program clinical supervision
No full textThis study investigates the clinical practicum experiences of graduate speech-language pathology students, focusing on their perceptions of supervision and how it aligns with adult learning theories, specifically Andragogy, as posited by Knowles. The implications for the practical application of this research are significant, as they may lead clinical educators to improve supervision practices and ensure effective learning environments for future clinicians. This qualitative case study used semi-structured interviews with seven graduate speech-language pathology students who had completed their first clinical practicum rotation. Data were analyzed using thematic and categorical analysis through axial and selective coding to identify key themes related to the supervision process. The analysis revealed four key themes: favorable and unfavorable characteristics of clinical supervision, emotional responses to supervision, gaps between student expectations and reality, and the role of feedback in learning. These findings aligned with Knowles' adult learning theory, demonstrating that students benefited most from supervision models that integrated self-directed learning and reflection. The findings suggest that clinical supervision models incorporate elements of adult learning theory to better meet the needs of graduate students. This research highlights the importance of structured feedback and self-reflection in the supervision process, offering actionable insights for clinical educators
Educate Exercise Empower Why walk with a doc? Initial findings suggest the importance of social connection
No full textBackground: It is widely known that regular physical activity is important to overall health and well-being. In Cherokee County access to exercise opportunities is not widely available compared to the State of Oklahoma and nationwide. To combat lack of access and provide health education, a Tahlequah chapter of Walk with a Doc (WWAD) began in July 2023 in partnership with Oklahoma State College of Osteopathic Medicine at the Cherokee Nation, Northeastern Oklahoma Community Health Centers, and Cherokee County Active Living and Transportation Committee. WWAD is an international nonprofit organization founded in 2005 by board-certified cardiologist Dr. David Sabgir, MD. Dr. Sabgir envisioned a program that provides communities with recurring opportunities to engage in physical activity, while creating an inclusive environment for conversation with local medical providers. Our objective is to investigate the reason individuals chose to participate in the program and initial impacts to inform future health program design.Methods: Adult (18+ years of age) participants of WWAD Tahlequah were emailed an electronic REDCap survey. The 41-question survey included demographics, health information, physical activity levels, reasons for and impacts from participating in WWAD, along with questions pertaining to loneliness, hope, and quality of life. Format included multiple choice, checkboxes, sliding scales, and free text. This is the initial survey collection of a longitudinal study.Results: The survey yielded 24 respondents, predominantly females (n=17) across various age groups ranging from 18-75 yo; the largest age group was 26-35 yo with 8 respondents. 50% of respondents (n=12) entered this WWAD program already meeting the AHA weekly physical activity recommendation of either 150 minutes of moderate-level activity or 75 minutes of vigorous-level activity. 100% of respondents are satisfied/very satisfied with the program and 66.7% (n=16) declared their physical activity levels have increased since starting the WWAD program. When asked to mark any choice for the reason(s) they chose to participate in WWAD, the top 3 choices that received a yes from over 50% of respondents included: “to spend time outside” (n=18), “to enjoy the company of others” (n=15), and “to support a friend/family member” (n=13). Questions pertaining to participating for physical activity reasons yielded “no” from the majority of respondents (i.e., “to reach my physical activity goals”, ‘no’ n=19, 79%).Majority of respondents agreed/strongly agreed that the WWAD program provides social connectedness and improves energy levels, to include: “gives me a chance to socialize” (n=23), “I feel more connected with members of my community” (n=22), and “Increases my energy levels after the group walks” (n=22).Conclusions: Results from our initial survey indicate participants value the opportunity to socialize that WWAD presents over achieving physical activity goals. These results may be biased due to small sample size and participants completing daily physical activity goals outside of WWAD. Moreover, a recent declaration from the U.S. Surgeon General of the ongoing Loneliness Epidemic supports our findings of Americans seeking community with others. Socialization aspects of group exercise might be advantageous to consider and capitalize on when designing public health programs aimed at improving health outcomes
Searches for vector-like quarks decaying to W bosons and module placement quality assurance for the ATLAS ITk upgrade
No full textThis dissertation explores the realm of particle physics through two distinct yet interconnected lenses: the search for Vector-Like Quarks (VLQs), and the quality assurance in module placement for the ATLAS Inner Tracker (ITk) upgrade in preparation for the High Luminosity Large Hadron Collider (HL-LHC). The Standard Model (SM) of particle physics explains many natural phenomena yet remains incomplete. VLQs lie at the heart of many extensions to the SM seeking to address the hierarchy problem. VLQs could be produced either singly or in pairs, and then decay to a SM boson and a third-generation quark. While single-production depends on the coupling of the VLQ to the SM particles, pair-production via the QCD interaction provides a model-independent test for VLQs. This paper presents a search for singly- and pair-produced VLQs. The pair-production analysis considers VLQs that decay into a W boson and a bottom quark, with one W decaying leptonically while the other decays hadronically. The analysis uses b-tagging algorithms, charge asymmetry metrics, multiple on-line triggers, and data driven corrections of the ttbar and W +jets back- ground Monte Carlo samples to improve sensitivity during the analysis of the full LHC Run 2 ATLAS dataset. Maximum excluded mass limits were set in this analysis at 1500 GeV for the B(T → Wb) = 1 scenario. Similar methodologies were followed in the Single VLQ analysis, but remains in the stages of unblinding. Finally, the paper explores the technical challenges and innovations surrounding the ATLAS ITk upgrade, focusing on ensuring the utmost precision in module placement for the inner detector rings and staves. Through comprehensive data analysis and experimental rigor, this dissertation not only contributes to our understanding of fundamental particles but also enhances the technological framework essential for future discoveries in high-energy physics
Development of robotic arm platform for fused deposition modeling of polymer composites
No full textWe have developed a robotic arm-based platform for fused deposition modeling (FDM) of polymer composites, which offers more freedom for 3D printing polymer composites than the conventional gantry-based method. An FDM printhead is assembled on a robot arm with 6 degrees of freedom, so layers of extruded material made of thermoplastic-based composites can be deposited on the print bed to construct a three-dimensional structure of a product. Our custom printhead, equipped with a PID controller, allows for adjusting the extrusion nozzle temperature and filament feeding rate. The controlling parameters extend to print bed temperature, robot head speed, and CAD model slicing. We successfully printed test coupons for three- point bending tests for future studies on optimizing process parameters, such as robot arm speed, nozzle temperature, and feeding rate, to customize the mechanical properties and surface roughness of printed products. The developed robotic arm-based platform for FDM-based additive manufacturing extends the research capabilities in composites manufacturing by leveraging the manufacturing freedom offered by combining 3D printing and robot-assisted manufacturing of complex design geometries.falseMechanical and Aero-Space Engineerin
Sustaining New Mexico’s ponderosa pine ecosystems: A collaborative approach across the reforestation pipeline
No full textClimate change is exacerbating stressors on New Mexico's ponderosa pine forests, necessitating effective reforestation strategies. The Target Plant Concept, emphasizing meticulous planning and collaboration, is crucial for successful reforestation, addressing site-specific limitations and optimizing seedling survival. The newly established New Mexico Reforestation Center (NMRC) integrates seed collection, nursery production, and planting operations to meet this challenge, requiring substantial seed collection and seedling production. To achieve this, the NMRC employs an "all-hands-on-deck" approach, fostering partnerships to enhance reforestation capacity, improve seedling quality, and refine planting practices, ultimately aiming to restore millions of acres of burned forests across New Mexico.Natural Resource Ecology and Managemen
Reconstruction of experimental thermal response functions from monitoring data of a borehole heat exchanger field
No full textThermal response functions are commonly used to describe the heat exchange capability of ground heat exchangers. When convolved with the ground thermal load, they allow for a quick and efficient prediction of the temperature evolution. Typically, thermal response functions are obtained through physical models of the heat transfer process. However, they can also be reconstructed directly from real experimental data, such as temperature measurements of the fluid leaving the boreholes. Here we reconstruct experimental response functions from monitoring data of 40 borehole heat exchangers. Each borehole is connected through a horizontal pipe to one of three underground vaults, in which sensors for fluid temperature and flow rate are installed. A data period of 27 days is used to deconvolve response functions for each borehole individually. The resulting functions reproduce the measured data with a root mean square error of less than 0.06 K. Moreover, they reveal subtle variations in the heat exchange potential of each individual borehole. Statistical analysis attributes those differences mainly to the length of the horizontal connecting pipes and the distance to neighboring boreholes. However, discrepancies for some boreholes suggest that not all variables affecting the heat transfer were taken into account
Food Research Initiative Program: Food Extension Initiative Program 2002
No full textThe Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311
Case study of career decisions made by direct care workers in juvenile facilities
No full textThis dissertation investigates the factors influencing direct care staff intentions to stay within Cedar Valley juvenile facility, utilizing the Person-Environment Fit Theory as a framework. Through a qualitative case study approach, perceptions of direct care staff were explored regarding their employment. Nine interviews were conducted at Cedar Valley juvenile facility, offering rich insights into the experiences and motivations of these individuals. This research explores commonalities between individual characteristics and environmental factors, shedding light on the complexities of staff retention in juvenile detention settings. Research questions, such as factors encouraging longer-term employment, environmental influences, and job challenges, thoroughly investigated to provide insight to direct care staff retention at Cedar Valley juvenile detention center. Findings from this study contribute to a deeper understanding of the workplace perspective in juvenile justice facilities. The research also provides implications for policy and practice to enhance staff retention and effectiveness of rehabilitation efforts
Enhancing wheat yield and protein formation: Assessing N uptake dynamics in diverse genotypes
No full textOptimizing wheat (Triticum aestivum L.) yield and grain protein concentration (GPC) while minimizing nitrogen (N) inputs is crucial for sustainable agriculture, particularly in dryland conditions. This study investigated N use efficiency, accumulation, and partitioning in four winter wheat genotypes with similar yields but contrasting GPC under two N rates (0 and 120 kg N ha⁻¹) across two environments over four growing seasons in Oklahoma. High-protein genotypes (Dob and Grn) consistently achieved higher GPCs compared to medium (Gal) and low-protein (Iba) genotypes without compromising yield potential. Total plant N accumulation at maturity exhibited a quadratic relationship with grain yield, with low-protein genotypes showing greater N utilization efficiency (NUtE) than high-protein genotypes. The high protein genotype Grn seemed to achieve high protein by increasing total N uptake. In contrast, the high-protein genotype Dob increased N partitioning to grain (NHI) as compared to the lower-protein genotype Iba. Evaluation of N remobilization from vegetative organs to grain revealed that leaves, stems, and chaff remobilized an average of 14-20, 17-22, and 10-12 kg ha⁻¹ of N. Based on Nitrogen Nutrition Index (NNI) estimation, as N conditions improved (higher NNI), the proportional contributions of N remobilized from leaves tended to increase, while those from stem and chaff decreased or remained unchanged. High-protein genotypes exhibited lower proportional remobilization from chaff but higher leaf remobilization in favorable N conditions. Using Bayesian hierarchical models, we further investigated the relationship between NNI and yield components. The linear plateau model revealed genotype-specific critical NNI values for GPC, grain yield, spike and grain number per unit area. Most observations were below critical NNI levels (NNI < 1), indicating slightly restrictive field conditions. High-protein genotypes achieved maximum GPC at lower critical NNI values (1.0-1.2) compared to the low-protein genotype, which did not reach maximum GPC within the observed NNI range (1.2). Grain yield and yield component responses to NNI varied among genotypes, with high-protein genotypes generally achieving maximum values at lower NNI levels. These findings highlight the complex interplay between N utilization, yield formation, and protein synthesis in wheat under dryland conditions. The observed genotypic differences suggest potential for breeding wheat genotypes that combine efficient N use with high yield and GPC in water-limited environments. This study contributes to understanding N use efficiency in dryland wheat production and provides insights for breeding programs and agronomic practices. The elucidated physiological strategies of high-protein genotypes and the robust Bayesian methodology offer valuable foundations for future research in crop N dynamics under varying environmental conditions
First report of Candidatus Phytoplasma SrI subgroup 1A causing Aster Yellows on chrysanthemums in Oklahoma
No full textChrysanthemums are one of the most valuable florals in the United States. Although considerable acreage is used to grow chrysanthemum in the US, the US is a net importer of the flower, with imports in 2022 exceeding over $125 million. In late 2023 and early 2024, samples of different cultivars of chrysanthemums (Chrysanthemum morifolium) originating from within the state were submitted to the Oklahoma State University Plant Disease and Insect Diagnostic Laboratory (Stillwater, OK). Samples consisted of both symptomatic and asymptomatic samples. Samples had symptoms consistent with aster yellows, with visible phyllody and virescence on many of the samples. The objective was to identify and confirm the identity of the pathogen causing disease of chrysanthemums. Genomic DNA was extracted from samples and a qPCR assay followed by a nested PCR was initially used to screen samples for presence of phytoplasmas. A subsample of plants that tested positive in the initial screening were further selected for sequencing. PCR was conducted using the P1/P7 primers to amplify the DNA encoding 16S-23S rRNA and purified samples were sequenced using Sanger sequencing. Analyses of sequenced strains indicated that the sequences belonged to the Candidatus phytoplasma SrI, subgroup A. This is the first report and confirmation of Candidatus phytoplasma SrI subgroup 1A aster yellows on chrysanthemums in Oklahoma, requiring concerted effort to mitigate spread of this pathogen.Entomology and Plant Patholog