OU - Graduate Student Publications

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Open Access
Aligned Set of STM Images
(2020-08-06) Yothers, Mitchell
A movie generated from 22 constant-current scanning tunneling microscope images acquired over 8 hours on August 14, 2017. . Bias voltage –1.00 V, tunneling current 1.0 pA. Trace images. Each image has been corrected to remove distortion and aligned so that image features are in the same location throughout the movie.
Open Access
Benchmarking of Academic Departments using Data Envelopment Analysis (DEA)
(2022-04-01) Alam, T.E.; Gonzalez, A.D.; Raman, S.
Purpose – The main objective of the paper is to develop an Investment Model using Data Envelopment Analysis (DEA) that provides a decision-making framework to allocate resources efficiently, such that the relative efficiency is improved within an available investment budget. Design/methodology/approach – DEA models are used to evaluate the efficiency of the departments relative to their peers and providing benchmarks for the less efficient departments. Secondly, the inefficiencies in departments are identified. Finally, for the less efficient departments, a decision-support system is introduced for optimizing resource allocation to improve efficiency. Findings – Five of the eighteen academic departments were determined to be inefficient, and benchmark departments were found for those departments. The most prevalent causes for inefficiency were the number of Undergraduate Students per Faculty and the Number of Graduate Students. Results from the Investment Model for Department 12 suggest increasing the Number of Faculty by 2 units and H-Index by 0.5 units, thereby, improving the relative efficiency of the department by 6.8% (88% to 94%), using $290,000 out of $500,000 investment budget provided. Originality – When an investment budget is available, no study has used DEA to develop a decision-support framework for resource allocation in academic departments to maximize relative efficiency.
Open Access
Black liquor and the hangover effect: fish assemblage recovery dynamics following a pulse disturbance
(2015-05-25) Piller, Kyle R.; Geheber, Aaron D.
Anthropogenic perturbations impact aquatic systems causing wide-ranging responses, from assemblage restructuring to assemblage recovery. Previous studies indicate the duration and intensity of disturbances play a role in the dynamics of assemblage recovery. In August 2011, the Pearl River, United States, was subjected to a weak black liquor spill from a paper mill which resulted in substantial loss of fish in a large stretch of the main channel. We quantified resilience and recovery of fish assemblage structure in the impacted area following the event. We compared downstream (impacted) assemblages to upstream (unimpacted) assemblages to determine initial impacts on structure. Additionally, we incorporated historic fish collections (1988–2011) to examine impacts on assemblage structure across broad temporal scales. Based on NMDS, upstream and downstream sites generally showed similar assemblage structure across sample periods with the exception of the 2 months postdischarge, where upstream and downstream sites visually differed. Multivariate analysis of variance (PERMANOVA) indicated significant seasonal variation among samples, but found no significant interaction between impacted and unimpacted assemblages following the discharge event. However, multivariate dispersion (MVDISP) showed greater variance among assemblage structure following the discharge event. These results suggest that 2 months following the disturbance represent a time period of stochasticity in regard to assemblage structure dynamics, and this was followed by rapid recovery. We term this dynamic the “hangover effect” as it represents the time frame from the cessation of the perturbation to the assemblage's return to predisturbance conditions. The availability and proximity of tributaries and upstream refugia, which were not affected by the disturbance, as well as the rapid recovery of abiotic parameters likely played a substantial role in assemblage recovery. This study not only demonstrates rapid recovery in an aquatic system, but further demonstrates the value of continuous, long-term, data collections which enhance our understanding of assemblage dynamics.
Open Access
College and Career Resources for Indigenous Students
(2021-07) Tennell, Courtney
The purpose of this quick look guide is to connect Indigenous students in Oklahoma to resources available through Indigenous Nations and organizations to fund and support their college education and career readiness.
Open Access
Complex Human (Un)Adaptive Systems and Feedback: A Framework for Biological & Social Inquiry
(2013) Doughty, Russell
Open Access
Concerning gamer identity: An examination of individual factors associated with accepting the label of gamer
(2019-03) Howe, William; Livingston, Dalaki; Lee, Sun Kyong
This study examined characteristics of players that self-identified as gamers. Participants (N=476) were asked to complete an online survey and provide information about their video game play. Analyses of the survey responses found support for gamers being younger, men, and playing more. We also found that some of the genres of play and technology used diverged from previous research. The two most surprising findings were that gamers preferred to play on consoles more than on computers, and massive-multiplayer online games were not the most played genre. This paper contributed to research in three ways: previous assumptions surrounding gamer identity and demographics were tested, the genre of games and method of play were examined to refine the definition of a gamer, and the implications of gamer identity were discussed.
Open Access
Digital Media, Authority, and the Roman Catholic Church
(2015-03) Hickey, Katherine; Rhinesmith, Colin
The purpose of this study is to identify the discursive and hegemonic interplay between the Roman Catholic Church (RCC) and American Catholics in digital media. It will use the Year of Consecrated Life (YCL) as a case study to illuminate how American Catholics negotiate discourses of power, oppression, and agency within the Catholic tradition. The appeal of the YCL for the study is two-fold: (1) it is a year-long (November 2014 - February 2016) social, spiritual, and technological campaign undertaken by the Vatican that will reveal the latest Vatican media practices, and (2) the topic of religious life, which remains a Catholic practice perceived as quixotic and perpetuating gender norms. This poster presents a literature review and methodology to answer the following research question: How do Catholics respond to, engage with, and negotiate Vatican regulations of technology use? By attending to the textual discourse of the Roman Catholic Church, the study intends to address a gap in the literature regarding the exertion and use of authority by religious leaders through digital media, as well as the discursive mechanisms used by religious members through digital media to subvert and challenge their leaders’ authority.
Open Access
Don’t Rest on the Risk Strategies to Increase Forest Carbon Storage and Reduce Fossil Fuel Consumption
(2013) Doughty, Russell
Open Access
Earth’s Terrestrial Life Support System
(2013) Doughty, Russell
Open Access
A Fireless Prescription, Leverage Points, and the Future
(2013) Doughty, Russell
Open Access
A Framework for National Adaptive Resource Management
(2013) Doughty, Russell
Open Access
A Gigantic Shark from the Lower Cretaceous Duck Creek Formation of Texas
(2015-06-03) Frederickson, Joseph A.; Schaefer, Scott N.; Doucette-Frederickson, Janessa A.
Three large lamniform shark vertebrae are described from the Lower Cretaceous of Texas. We interpret these fossils as belonging to a single individual with a calculated total body length of 6.3 m. This large individual compares favorably to another shark specimen from the roughly contemporaneous Kiowa Shale of Kansas. Neither specimen was recovered with associated teeth, making confident identification of the species impossible. However, both formations share a similar shark fauna, with Leptostyrax macrorhiza being the largest of the common lamniform sharks. Regardless of its actual identification, this new specimen provides further evidence that large-bodied lamniform sharks had evolved prior to the Late Cretaceous.
Open Access
The Great Pacific Northwest Carbon Sink: Grab Your Clogs, It’s Time to Dance
(2013) Doughty, Russell
Open Access
The Green Ocean: Lessons from the Amazon
(2013) Doughty, Russell
Open Access
Impacts of Forest Management on Soil in the Ouachita Highlands
(2013) Doughty, Russell
Open Access
The Land of Freedom: US GHG Emissions and Population Growth to Drive Global Climate Change
(2013) Doughty, Russell
Open Access
Manager–employee communication in the# MeToo Era: The role of gender similarity and context ambiguity in ethical leadership
(2020) Meeks, Lindsey; Howe, William
Sexual harassment is a widespread problem in the American workplace. Managers must understand how their employees perceive ethical leadership in this context. This includes current undergraduates—managers’ future employees. Undergraduates are entering the workforce in a climate of heightened awareness due to the #MeToo movement and federally required collegiate sexual violence training. Grounded in scholarship on ethical leadership and feminist standpoint theory, the experiment compares U.S. undergraduates’ perceptions of male and female managers across common workplace scenarios and examines their evaluations of managers’ traits and behaviors. Analysis reveals (a) what manager behavior is deemed ethical, (b) a general preference for female managers, and (c) that women evaluate female managers more positively than male managers. This study’s findings provide important implications for employee–manager communicative exchanges.
Open Access
Natural Gas Utilization: A Case Study of GTW AND GTL Technologies
(2019-08-01) Ajagbe, Oluwatobi
This paper itemizes different utilization technology that could be used to monetize natural gas asset and a comparative techno-economic study of the use of Gas-to-Wire (GTW) technology and Gas-to-Liquid (GTL) to monetize a gas asset was also carried out. A study of this nature is necessary given the increase in the fraction of natural gas in the global energy mix, lower cost of exploration and production of gas reserve and the dip in natural gas price experienced in recent years. The comparative study includes two scenarios describing the different production condition of the gas asset. Economic metrics such as Net Present Value (NPV), Internal Rate of Return (IRR) and, Payback Period were used to assess the project yield for the two utilization projects. Sensitivity analysis was carried out on certain market drivers used in the analysis to ascertain the level of influence of each driver on the project yield and to compare how do their level of influence differ with each project. Monte-Carlo simulation was also used to analyze the level of risk involved in the two utilization. A research of this nature is expected to serve as a guide to a natural gas producer in this era of abundance, but a low price when considering various options on how to monetize their natural gas assets.
Open Access
New Implications for a Sun-Earth-Moon System
(2013) Doughty, Russell
Open Access
Noosphere
(2013) Doughty, Russell