Open Research Oklahoma (Oklahoma State Univ.)
Not a member yet
42035 research outputs found
Sort by
Being the change we wish to see: Neurodiversity-affirming practices for library workers and patrons
Get PDFThis session will provide and talk through practical tips for supporting the agency of autistic and neurodivergent individuals in your library. Led by an adult-diagnosed autistic librarian, the session will encourage attendees to ask questions such as: What are specific ways of thinking that aren't serving your entire community, and how might you work towards a neuro-affirming, universal design?What are things that you and your library are doing because you think you should and which of those things could be dropped to better support autistic and neurodivergent individuals?What parts of yourself may need tending to make the necessary paradigm shift towards more neuro-affirming practices?Participants will walk away with actionable steps they can take in nearly all areas of librarianship - from more inclusive ways to engage with patrons, to better policies to support all workers.Librar
Characterizing the heat transfer performance of contaminated flame-resistant fabrics: Implications for safety and well-being of oil and gas rig workers
Get PDFMore than half of the countries of the world are involved in oil and gas production. Skin burns and fatalities routinely occur as this field is prone to heat and fire. As a result, flame-resistant clothing is a mandatory requirement for this industry’s workers. Additionally, this field contains multiple flammable oily substances such as drilling mud and crude oil with which workers have repeated contact. Consequently, the flame-resistant clothing of the workers is contaminated with these chemicals which may harm the heat transfer properties of the flame-resistant fabric (FRF) and result in more burn injuries for the workers. Therefore, this study aims to evaluate the heat transfer performance (HTP) of the oily-contaminated FRF which could help to maintain the overall integrity of clothing to protect the workers from thermal injuries. In this study, the HTP was evaluated and characterized by exposing the fabrics to 84 kW/m² mixed heat flux from convective and radiant heat sources. Two different contamination levels of drilling mud and crude oil were added to the three different types of FRF. Statistical models were developed to understand the relationship between the HTP and contamination type, level, and fabric parameters. Test results showed that the HTP of drilling mud-contaminated fabrics had a positive correlation with contamination level. On the other hand, the HTP of the crude oil-contaminated fabrics varied with the fabric types and contamination level. Overall, the drilling mud-contaminated fabrics showed higher HTP than crude oil-contaminated fabrics due to their higher specific heat capacity and lower flammability properties. Besides, the fabric's physical properties such as areal density and air permeability significantly contributed to varying the HTP of the contaminated fabrics. The study revealed an understanding of the impact of contamination on FRF, which could lead to the development of novel standards and fabrics that could provide better protection for workers
Substance abuse: The addictive personality
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
Ecophysiological influences on the metaplastic tissues of end-Cretaceous Pan-Trionychian turtle shells
Get PDFThe metaplastically-mineralized dermal tissues of trionychid turtle shells exhibit a variety of complex and variable structures like the external ornamentation surface, the plywood-like structure, the suture margin, and more. This complexity, in conjunction with their relative ubiquity, makes trionychid shells an ideal candidate to examine the roles that ontogeny, phylogeny, mechanics, and environment play in shaping histology and morphology. Baseline variance as a function of latitude, ontogenetic age, and body size is first established by sampling an extant taxon: Apalone spinifera, which has a large size and wide latitudinal range. Apalone shows histology that is remarkably unremodeled, possibly due to its reliance on extrapulmonary respiration. Carapacial length and growth mark counts were correlative but still showed notable intraskeletal variance, and turtles from higher latitudes showed modestly slower growth rates, though this relationship is weak.
Surface ornamentation, often genus-specific in trionychids, was used to qualitatively sort 1,300 K/Pg turtle shell specimens into genera and broader morphotype categories while Surface Topographic Analyses provided quantitative measures of surface topography. To quantify shell histology, over 25,000 osteohistological data points such as zonal thickness, porosity, and vascular orientation were collected. These data were then statistically compared against latitude, stratigraphic position, lithologic context, ontogeny, phylogeny, and K/Pg survivorship to better understand how each respective variable covaries with ornament and histology.
Distinctly sculptured shells had ornament pits devoid of Sharpey’s fibers, suggesting that ornamentation cradled a dense cutaneous capillary bed. These turtles also exhibited smaller medullary cavities, indicating that the shell was seldom remodeled. These data suggest that similar to Apalone, K/Pg turtles adopted varying degrees of extrapulmonary respiration to prevent blood acidosis, but their unique sculpturing and vascular correlates indicate that they relied on cutaneous respiration more than the cloacal/buccopharyngeal respiration utilized by Apalone. Trionychids with distinct ornamentation and minimal remodeling go extinct at the K/Pg boundary, suggesting that cutaneous respiration-induced normoxic reliance was a liability when photosynthesis halted and freshwater ecosystems became anoxic.
This dissertation demonstrates that beyond ontogeny and phylogeny, the shell is deeply shaped by physiology and ecology, and these adaptations make trionychids more resilient through significant ecological upheavals
Endangered species
No full textMy thesis culminated in my BFA exhibition what was on display at the Gardiner Gallery where I presented my artist talk over my work
Integration of virtual reality into the building egress signage design process
No full textThe thesis utilizes virtual reality (VR) to create a controlled environment for evaluating the effectiveness of various exit sign designs. This innovative approach goes beyond simply looking at the signs themselves, but also considers factors that might influence how people react to them in an emergency.
The study design incorporates real-world variations by including participants of different genders and with varying prior emergency experiences. VR experiments then measure key metrics like evacuation time, how quickly participants identify exit signs, and their overall satisfaction with the signage. This comprehensive analysis provides valuable insights into which exit sign designs are most effective for guiding people to safety during an emergency.
The research fills a knowledge gap about exit signage effectiveness during emergencies. The findings contribute empirical evidence that can enhance egress signage standards. The study also showcases the versatility of VR in safety-related applications, demonstrating its potential in simulating emergencies and testing signage designs in a controlled environment.
In summary, the document provides valuable insights into building safety, emergency preparedness, and the innovative use of VR in these areas. The findings could significantly influence building design and emergency preparedness strategies. The pioneering use of VR in this research sets a new standard for future studies in this field
Elucidating water’s role in post-synthesis zeolite modifications to control rare-earth and phosphorus incorporation
No full textZeolite catalysts are crucial to an economically viable petrochemical industry, with framework structures and post-synthetic modifications optimized for gas-phase hydrocarbon feeds. With increasing demands for sustainability and control of the carbon-atom economy, zeolites have also emerged as promising catalysts for hydrocarbon production from bio-derived feedstocks, waste streams, and other oxygenates that can expose the zeolite to both liquid- and vapor-phase water. Many studies on post-synthesis modifications of zeolites are essentially qualitative and focus on improving the zeolite’s stability against high-temperature steaming in catalyst regeneration steps. However, liquid- and vapor-phase water attack the zeolite framework by different mechanisms. To better adapt zeolites to these new and varied processes, then, a clearer understanding of how water impacts common post-synthesis modifications is needed. One of the most common post-synthesis modifications is the introduction of stabilizing cations by ion-exchange; most notably, the introduction of either rare earths or phosphorus, but routine methods of introducing non-framework cations via aqueous exchange can degrade the integrity of the zeolite framework, making the cations’ true impact on zeolite reactivity and stability unclear, particularly in the case of zeolite Y. By adjusting the cation exchange process in order to preserve the zeolite framework, defect-free catalysts with varied Lanthanum loadings were synthesized. Quantitative solid-state NMR experiments coupled with micro-reactor experiments and computational studies revealed both the nature of rare earth incorporation and its impact on catalyst reactivity and stability, clearly identifying preferred rare-earth siting in a faujasite zeolite Y catalyst. Additional NMR experiments combined with computational studies revealed that while the use of water as a solvent has negligible impact on phosphorus incorporation in ZSM-5, the presence or absence of water can change phosphate structure distributions in phosphorus-modified MFI zeolites. While hydration-dehydration cycles in Lanthanum-modified zeolite Y causes irreversible loss of framework acid sites, similar hydration-dehydration cycles in phosphorus-modified ZSM-5 are fully reversible, forming polyphosphates upon dehydration which, upon rehydration, reform the first-formed framework-tethered Al-O-P species as well as hydrogen-bonded H₃PO₄/BAS complexes
Riser reality: Use of augmented reality and virtual reality to enhance online education in the fire protection and safety field
No full textThe integration of augmented reality and virtual reality technologies will empower online students with resources they previously lacked. Through virtual fire safety laboratories, students can now explore fire riser systems, inspect components, and engage in maintenance tasks—all within a digital environment. These interactive experiences transcend physical limitations, ensuring that remote learners gain access to practical knowledge.Division of Engineering Technolog
Black bass angler harvest and opinions in relation to stream size, access, and fish diversity
No full textOklahoma's streams, rivers, and reservoirs are home to diverse fish species and are important for the local economy and various recreational activities. However, significant changes in these ecosystems over the past decade highlight the need for updated data analysis to assess evolving trends in anglers' perspectives and fishing experiences. This study focuses on the Illinois River and tributaries of Lake Tenkiller in eastern Oklahoma, utilizing survey-based methods to assess the recreational and socioeconomic characteristics of stream anglers in the region. The analyses will include frequency counts to determine the prevalence of different angling practices and preferences among respondents. Mean and median values will be calculated for variables such as catch rates, fishing hours, and expenditures to gain insights into the average angler's experiences and economic contributions. Overall, these summary descriptive statistics will provide updated and crucial information for fisheries management by the Oklahoma Department of Wildlife Conservation (ODWC) to ensure angler satisfaction in eastern Oklahoma, ultimately contributing to the sustainable management of natural resources and the enhancement of recreational fishing experiences and opportunities.Research Experience for UndergraduatesAgricultural Economic