Open Research Oklahoma (Oklahoma State Univ.)
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Vegetable varieties
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
Business of diversity: Validating the hidden narratives of Black women earning a business degree
No full textThis study explores the intricate narratives and experiences of Black women navigating the landscape of post-secondary business education. Drawing from Black feminist theory, this research aims to shed light on the nuanced challenges and triumphs faced by Black women within the confines of business education. Employing qualitative methods, narratives from Black female business students across diverse educational institutions were collected and analyzed. The findings highlight the complex interplay between identity, curriculum, and lived experiences, illuminating the ways in which these women negotiate and resist marginalization within the business school environment. Themes of identity formation, intersectionality, curriculum inclusivity, and the impact on professional trajectories emerge, highlighting the need for more inclusive and culturally responsive pedagogies. Ultimately, this study advocates for a reconceptualization of business education to embrace diversity, equity, and inclusivity, offering insights to enrich educational practices and foster supportive environments for Black women pursuing business degrees
Integration of wing-mounted, electric-driven propellers on a turboelectric general aviation aircraft ground test rig
No full textThis thesis presents the installation and evaluation of electric-driven propellers mounted to the wing leading-edge of a Cessna 172 turboelectric ground test rig. There is currently an emerging market need amongst the aviation industry for all-electric and hybrid gas-electric propulsion systems. This emerging market drives the need to identify and characterize the safety issues for the integration of a turboelectric propulsion system on transport aircraft. A Cessna 172 aircraft has been set up as a ground test rig in order to evaluate the design of a retrofit, turbine-based, hybrid gas-electric power system for use on small manned aircraft. This power system consist of a PBS Aerospace TP100 180-kW turboprop coupled with a 50-kW generator in a partial turboelectric configuration. In this configuration the turboprop has a 72-in, 3-blade, constant speed propeller that is mechanically driven and two wing-mounted 50-in, 2-blade, fixed pitch propellers that are electrically driven with power from the generator. The wing motor mounts utilize 6061 aluminum sheet stock, right angle channel, and square tubing. The mounts are secured where the wing strut meets the wing and to the main spar using rivets. Finite-element analysis was conducted on the mounting structure utilizing estimated maximum torque and thrust values with a factor of safety of 1.5 to simulate max loading to evaluate the structural integrity of the mount. A computational fluid dynamics study was conducted using manufacturer data of measured thrust to investigate the effects of propeller wash on electric speed controller cooling. The results of the study identify potential integration issues of wing-mounted propellers with the retrofit of electric or hybrid propulsion systems onto existing airframes and can be used to guide future designs and develop engineering and certification standards
Role of serious leisure perspective in Division 1 college football
No full textCollege football is a huge part of American culture and there are many implications that can come with it. Coaches are constantly faced with pressure to succeed and to win, so they are always looking for ways to improve. Coaches are tasked with building a positive culture, fostering team cohesion, and keeping their players motivated. This task can be more difficult than ever because of the transfer portal and newly installed NIL rules. As college football has evolved, so has the focus of athletics. The focus is on culture and player experience, now more than ever. This research investigates football players at Oklahoma State University identifying their alignment with the six tenets of the Serious Leisure Perspective. The Mann-Whitney test is used to compare the means of different groups throughout the team. The research gives coaches new information and tools to help develop players and to create the best team culture and player experience possible
Intensity, duration, and timing of predator and safety cues and their effects on multiple phenotypic traits in the pond snail, physa acuta
No full textPredation risk – like most stressors – can be broken down into multiple components, such as intensity, duration, and timing. This dissertation approached predation risk from each of these dimensions, exploring how prey responses change as cue characteristics shift. I used the pond snail, Physa acuta, as my study species and crayfish as the predator. In Chapter 1, I investigated acute behavioral responses to predator and safety cues, which represent opposite ends of risk intensity. While exposure to predator cues conveys high risk, safety cues – which often originate from vulnerable individuals expressing conspicuous behaviors – indicate low risk. The prospective safety cue I used was sampled from foraging conspecifics since foraging is a high-risk activity that should be avoided under high predation risk. However, snails did not reduce their anti-predator behavior when exposed to the safety cue during behavioral trials, perhaps because conspecifics are a poor indicator of safety in this species. In Chapter 2, I explored chronic exposure to different intensities of risk: high (predator cue), neutral (control cue), and low (safety cue). Snail responses to chronic predator cue exposure mirrored previous research. Chronic control and safety cue-exposed snails were frequently indistinguishable from one another in their responses, but chronic exposure treatment did affect short-term anti-predator behavior and there was a trend for improved hatching rate in the safety cue group. Despite this, the distinct responses from safety cue snails could also be explained by factors other than perceptions of safety. In Chapter 3, I investigated acute exposure to predator cues at different points during development. Treatment snails were exposed as embryos, immediately after hatching, or just prior to sexual maturity. I measured reproductive responses in individual snails, their egg masses, and a subsample of individual embryos. Reproductive responses declined as snails aged, but snails exposed to predator cues as embryos or young juveniles experienced weaker reproductive declines while sub-adult exposed snails had stronger reproductive declines. Overall, this dissertation demonstrates that snails respond to predation risk as a multidimensional stressor. This suggests that future work on predation risk responses may need to vary multiple components of risk to adequately explore prey responses
The lived experiences of cisgender gay male academic advisors in higher education
No full textThis dissertation explored the experiences of cisgender, gay male academic advisors in higher education. Using participant-generated photo elicitation and narrative interviews with 10 participants, the study revealed gay academic advisors were forced to negotiate their sexual identity in higher education. Through their negotiation, academic advisors were caught in a heteronormative environment that was less supportive of gay men than straight employees. Although sexuality was a key component of participants’ work identities, some still questioned being wanted or supported, putting into question the supportive environment of higher education.
This study has significant implications for institutions of higher education and institutional leadership. The findings revealed higher education tends to provide a false narrative of being inclusive, suggesting all individuals are supported, no matter their identity. At their higher education institution, gay academic advisors felt the need to alter their identity, be selective with whom they shared their identity, and experienced prejudice through negative political rhetoric.
Finally, the study expanded Dillon et al.’s (2011) sexual identity unifying model, integrating the unique nuances experienced by gay male advisors. Findings from the study were all part of participants’ abilities to experience multiple stages of the coming-out process concurrently, based on where they were with their sexual identity
4-H Home Demonstration: Eighth year
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
Holistic medicine used in veterinary cases
No full textThe records of approximately ten canine patients from a local veterinarian practice were reviewed. Each case shows holistic medicine being used in place of traditional medicine. The presenting issue of the patient and treatment is analyzed
Thermal resistance of a CO2 geothermal thermosyphon with an active condenser
No full textIn this study, an experimental setup was built and fully instrumented to investigate the thermal resistance of a CO2 geothermal thermosyphon (GT) with an active condenser connected to its upper section. The study explores the effects of CO2 filling ratios, cooling fluid flow rate and temperature on the thermal resistance in different zones of the experimental GT system. The results show that the total thermal resistance of the GT stands out, displaying a notably higher value, up to 12 times that of the active condenser. Furthermore, the thermal resistance of the active condenser is higher than those of the evaporator and condenser sections, being up to 3 and 7 times higher, respectively. Therefore, reducing the thermal resistance of the active condenser and between the evaporator wall and the ground represents the most effective approach to enhance the performance of the GT system. These findings offer valuable insights for the efficient design of GT systems with active condensers, identifying areas where improvements can be made to maximize GT performance
Top 100 most-cited publications in Mohs micrographic surgery: A bibliometric analysis
No full textBackground: Bibliometric analyses are used for interpreting the structural, social, and economical components of scientific data, mapping the information entailed. For these reasons, bibliometric analyses provide meaningful insight by collecting an entire overview of a field’s research output, deriving new ideas for future research, and identifying research gaps and trends over time.Objective: This study aims to perform a bibliometric analysis to evaluate the dynamic trends and characteristics of the top 100 most-cited publications in Mohs micrographic surgery (MMS).Methods: We searched the Web of Science Database, a selective reference and citation index of scholarly journals. All articles published up to March 7, 2023, were included in our return. Returned articles were screened, and data from the top 100 most-cited were extracted in a masked, duplicate fashion. The R and RStudio programs were applied to perform comprehensive mapping analyses of the included studies. The VOSViewer program was used to produce overlay maps for keyword analysis.Results: The mean number of citations for the top 100 articles was 84.4, with the most cited article having 309 citations and the least cited article having 35 citations. Among our sample, observational studies were our most frequent study type, with 86 studies, and systematic reviews/meta-analyses were least frequent, with 2 studies. Leibovitch was found to have the most publications as a first author, with 8 studies, and Brodland had the highest number of total authorships in the sample, with 12 studies. The Journal of American Academy of Dermatology had the most publications in the sample, with 35. The year with the most activity was 2005, with 10 publications.Conclusion: This study outlines the top 100 most-cited publications within the field of MMS and which study factors have provided us with the current state of MMS literature. Social and economic factors were identified to assist in the mapping of MMS research. We believe that the results of this study offer insight for future MMS research, particularly in terms of directing future research. Furthermore, we recommend future authors use our study as a guide for identifying areas of focus, and to improve the overall impact of their published work