Open Research Oklahoma (Oklahoma State Univ.)
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Cowgirls call the shots: A social media campaign highlighting OSU's women's sports
No full text"Cowgirls Call the Shots" is a social media campaign involving a series of mixed-media animation videos highlighting every Cowgirl sport in their most recent "big moment." The goal was to help OSU Athletics promote Cowgirl sports equally and highlight them as a whole during Women's History Month. The animation process included printing out and physically manipulating frames of video clips through cutting and pasting or drawing elements on top. After releasing during the last week of March, the series has garnered over 120k impressions across Instagram, X, and Facebook
Factors that influence retention within the Ferguson College of Agriculture
No full textThe study discusses what factors lead students within the Ferguson College of Agriculture to choose their major. The survey was exclusive to students at Oklahoma State University who currently are or used to be students in the Ferguson College of Agriculture. The purpose of the analysis was to define the key factors that influence students to change their major or remain in the program. Additionally, the survey asked questions which would benefit the Ferguson College of Agriculture. The survey included specific questions to gain insight into the decisions of students and ultimately improve retention throughout the college. The findings shed light on factors influencing students’ decision to change their major, indicating no significant correlations between gender and major choice. However, there was a slight correlation between hometown size and major changes. The analysis highlights the combination of intrinsic and extrinsic motivators which influence students to make these decisions. Additionally, perceptions of coursework relevance to chosen fields of study were positive. Overall, the findings of this study will serve as a valuable tool in enhancing retention efforts within the Ferguson College of Agriculture
“StudentBody:” MRI-augmented anatomical learning
No full textIntroduction/Objectives: Active hands-on learning leads to superior acquisition and retention of complex information. We developed the “StudentBody” program at the OSU College Of Osteopathic Medicine (OSU COM) with the objective of facilitating active learning via student-initiated research experiences involving medical imaging (such as MRI, 3D digital reconstruction, and 3D printing) to develop tools for the broader education of their peers, future colleagues, and patients.Methods: Curiosity-driven, self-motivated exploration for students can bridge basic sciences and clinical learning with projects that they devise and create for the classroom and themselves. In two sessions per year, health professions students scan themselves at the OSU Biomedical Imaging Center using state-of-the-art MRI resources. Subjects and partnering students complete each project at the OSU COM CT Imaging Lab. Students develop their own research projects to investigate aspects of anatomy they are passionate about, while supported by a doctoral student in Anatomy.Results: Through these activities, students scan their own body for the education of the entire student body. With student consent, the scans and derived products are then securely stored and indexed for future research and educational explorations. Ongoing projects include:- Student Drs. Lauren Hartsel, Tyler Mckenzie, and Kelcey Nees developed their own project entitled “3D carpal joint spacing from MRI in subjects with and without Childhood Onset Autoimmune Disorder.” Further control and affected students are joining this project to increase the study size and carry the project long past its origin.- Student Dr. Ryan Emmert’s results from “Subject-produced model of the visual system from MRI head + neck scan” are undergoing 3D-printing for use as an educational enhancement for the Nervous System course in 2024.- Student Dr. Kaylin Ray fulfilled her research rotation with “Musculoskeletal model of a subject’s lower limb derived from MRI.” This project inspired new method development to reconstruct muscles using standard MRI without contrast. The method has catalyzed further research into dynamics and bone response in female athletes, and equine limb stress during extreme exercise.Conclusions: Involved student doctors are exposed to the process of research, particularly in medical imaging. This immersion will augment their critical evaluations of essential new research in their fields. As this project grows, we will quantify the relative retention of anatomical knowledge between students involved in “StudentBody” and a control group of nonparticipating students with similar initial scores from their first-year gross anatomy and neuroanatomy courses. Furthermore, we will evaluate the level of value these scans and derived 3D models add as educational aids for future classes of health professions students
Passing to play: Examining student-athlete academic motivation
No full textStudent-athletes at all levels are tasked with managing academic success and athletic performance simultaneously. Many of these students may only achieve passing grades in order to remain eligible to participate in their sport. This is when the idea of “passing to play” comes about (Lapchick, 1989). To gain insight on this, I conducted a survey with Oklahoma high school students who are or were student-athletes, and the professionals who work with these students. Within the survey it asks for demographic information and questions about their academic performance and its relationship to their athletic participation. It also included the opportunity to be interviewed and answer further questions to examine personal motivations and influences on academic performance. This study was conducted and once the data was collected, it was coded for common themes across the participants' answers. Knowing what motivates this population of students can influence teaching practices, administration, and school policies, as well as how teachers, coaches, and other staff members frame academics in relation to these students’ athletic endeavors. By understanding how students are motivated, their experience and success in school can be improved
Use of novel entomopathogenic Metarhizium strains for control of fall armyworm (Spodoptera frugiperda) in turfgrass
No full textEntomopathogenic fungi offer promising and environmentally friendly alternatives to chemical insecticides for pest management in turfgrasses. Commercialized entomopathogenic fungi registered for application to turfgrasses primarily use Beauveria bassiana GHA (Botanigard) or Metarhrizium brunneum F52 (Met52) as the active agents. Strain adaptation to local environments could improve the efficacy of biological control organisms. So, in 2014, 37 novel strains of entomopathogenic fungi were isolated from the soils of several horticultural sites in Oklahoma and assayed for virulence against waxworms and mealworms. The five most virulent strains which included four strains of M. robertsii (OK78, OK87, OK106A, and OK205) and one strain of M. lepidiotae (OK102) were selected for laboratory bioassays and field trials against black cutworm (Agrotis ipsilon), a turfgrass-defoliating caterpillar pest. In both laboratory bioassays and field trials these fungal strains caused high mortality (82.6%-to-90.6%) to black cutworms. Based on these results, the efficacy of each fungal strain against another turf pest, fall armyworm (FAW) (Spodoptera frugiperda) larvae, was assessed in laboratory bioassays and field trials. In 6 cm diameter laboratory bioassay cups, second instar FAW larvae (n=25 per treatment) were co-incubated with 1 g negative control sterile proso millet grains or sterile proso millet grains inoculated with each of the five native Metarhizium strains or with positive control M. brunneum F52. Mortality was assessed at 2-, 4-, 6-, and 8-days after-treatment (DAT). In field trials, screened, 46 cm diameter PVC corrals (n = 4 plots per treatment) on ‘Tyee’ bentgrass putting greens (OSU Turfgrass Research Center, Stillwater, OK) infested with 25 FAW eggs and inoculated with 10 g proso millet grains inoculum of each fungus or sterile proso millet seed control. One day prior, 4 plots were treated with bifenthrin (Talstar P at 0.2 fl. oz. per 1,000 sq. ft.). After 14 days, larval mortality (%) and turf damage ratings were evaluated. A high rate of mortality was observed in FAW larvae both in laboratory bioassays and field trials. The next objective of this study was to calculate LC50 (Lethal Concentration 50%), Mortality data were analyzed using probit analysis to determine the effective range of spore suspension concentrations per application for each strain. The LC50 values were as follows: OK78 - 4.2 x 10^5 conidia/mL, OK87 - 1.74 x 10^5 conidia/mL, OK102 - 2.82 x 10^5 conidia/mL OK106A - 6.31 x 10^5 conidia/mL, and OK205 - 3.63 x 10^5 conidia/mL. This study showcases the promising potential of these novel Metarhizium strains as effective biopesticides in turfgrass pest management
Keep up production and save grain
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
Retrofit of metal forming machine OMCG 1-580
No full textOver the years new and better ways of automation have been implemented every day in the industry. This has originated gigantic steps which outdate technology so often that obsolescence has become a problem into the industry. Whole machinery systems are falling rapidly in this condition leaving designers and processes improvers with a limited scope of options. Perfectly good machines cannot be repaired without modifying the system significantly due to the lack of parts that are no longer available in the market.
Additionally, safety regulations have changed within time. Many old equipment does not meet the regulations of a modern world. This in turn, increases the cost and complexity of the improvement by the addition of safety items such light curtains, safety cages, safety scanners, etc.
A benefit of the rapid advancement of technology that might not be so obvious, is the wider range of possibilities regarding to the solution of a specific problem and to the different applications of such solution. For instance, adding a servomotor to a specific system that originally required more precision, can provide also more information and more control over variables like speed, positioning and acceleration. Subsequent information like amperage usage of the motor, revolutions and torque can be used for generating safety features for protecting the equipment and the operator. This provides the machinery with new capabilities that it did not have originally.
Rebuilding or retrofitting a piece of equipment has become a common task in the industry. It is a good low-cost option for having access to newer technology. It requires careful planning and expertise on several areas that include mechanical, electrical, and electronic systems. It is technically a complete research that encompasses different types of analysis, search of different types of information, electrical design, programming and an overall integration of all the systems. The result is a multidisciplinary project of Automation congruent with the emergent field of Mechatronics.
The purpose of this research is to develop a new control built upon new technology that manages all the functioning of OMCG 1-580, a wire bending machine
Drake Landing Solar Community: an analysis of different technology scenarios
No full textThe present work simulates the Drake Landing Solar Community (DLSC) in Okotoks, Alberta, using calibrated borehole heat exchanger models to evaluate the energy performance of different technology scenarios. Four technology scenarios were compared to the existing design, including an updated DLSC solar thermal system with high efficiency collectors, a photovoltaic plus heat pumps and electric boilers system with high temperature seasonal thermal storage, a conventional ground source heat pump system, and a hybrid solar thermal and photovoltaic system with heat pumps, electric boilers and seasonal thermal storage. The ground source heat pump scenario presents the highest SPFnet (seasonal performance factor net) to solar panel area with one caveat: the operation is dependent on ground temperature, which goes down with time, s, and the heat pump operation would experience interruptions after 30 years of operation without heat injection into the ground. The solar thermal + borehole thermal energy storage systems presented the highest SPFs of the options evaluated
Elk resource selection and space use interactions in the presence of low-intensity human recreation
No full textUnderstanding wildlife behavior and species interactions in the presence of human activity is integral to the management of game species in the Anthropocene epoch. Nature-based recreation is a global public interest, with 8 billion visits to protected areas worldwide and 3.3 billion visits in the United States documented annually. Therefore, studying wildlife behavior response and interspecific interactions in the presence of human recreation is integral to successful wildlife management. The Ruby Mountain Range in southwest Montana provides a unique opportunity to evaluate behavioral responses of ungulates in an area of low human use, with few human access points and roads and no established trail system. Our objectives were to use GPS-collar data to quantify spatial and temporal differences in elk resource selection across human recreation seasons and to use detection data from camera traps to create conditional co-occurrence models to test for interactions between elk (Cervus canadensis) and mule deer (Odocoileus hemionus). To quantify elk resource selection, we used GPS-collar data from 43 female elk and employed population-level resource selection functions to assess third-order selection during summer recreation seasons, archery hunting seasons, and general firearm hunting seasons. While results regarding landscape covariates were consistent with behavioral expectations during our study periods, our distance to human access variable continuously appeared in the most-supported model, indicating the importance of low-intensity human recreational use on elk resource selection. To test elk-mule deer interactions, we used 94 camera traps to collect data in summer and fall of 2020–2022, resulting in three summer recreation, archery hunting, and general hunting seasons of sampling. Results from our study indicated that in an area of low-intensity human use, presence or absence of both species affects the probability of detecting the other. However, effects are species- and survey-specific. Overall, results indicated that identifying levels of intensity in human use is an important consideration, as even low-intensity human activity affected elk resource selection and elk-mule deer interactions. To ensure conservation and management remains effective in the Anthropocene, future studies should account for intensity of human recreation when evaluating species interactions and resource selection, especially across dynamic landscapes
Characterizing the composition of contamination in wildland firefighters’ protective clothing due to the combustion of wood
No full textIn recent years the number of wildfires has significantly increased across the United States. During wildfires, the burning of biomass produces a large number of smoke particles containing significant concentrations of hazardous and carcinogenic chemicals. Wildland firefighters are frequently exposed to these hazardous substances while they are on duty. These compounds can deposit on and/or transmit through their protective clothing and cause dermal exposure leading to skin cancer. Furthermore, these carcinogens can also induce secondary exposure through various routes such as inhalation, ingestion or other mediums emanating from the contaminated clothing. Current studies have reported a notable rise in cancer among firefighters due to exposure to these carcinogens. Therefore, there is a critical need to investigate how fabric parameters affect the deposition and/ or transmission through protective clothing, as the amount of deposition and/or transmission may vary depending on the fabric parameters. This study aims to develop a new protocol to simulate wildfire smoke generation scenarios and to characterize the smoke particles deposited on wildland firefighters' clothing to identify the crucial fabric properties that can significantly impact the deposition and transmission of smoke particles. Commercially available three outer layer fire protective fabrics and one inner layer fabric were selected for this study and their properties were evaluated. The fabrics were exposed to smoke particles produced from the burning of pine wood under different burning conditions in a controlled laboratory furnace. Furthermore, the deposited particles were identified and characterized to investigate their carcinogenicity and other potential health hazards. The result revealed that higher burning temperatures and higher air flow rates caused an increase in the amount of deposition. On the other hand, a lower value of air permeability was associated with increased deposition, while surface friction showed a positive linear relationship and surface roughness showed a non-linear relationship with deposition quantity. Overall, the deposition in the inner layer fabric was higher compared to the outer layer fabric. The findings of this research will add to the current body of knowledge to produce protective textiles with enhanced performance against smoke contaminations, thereby improving the safety and well-being of wildland firefighters