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2023 August, Morehead State University. Office Of Communications & Marketing.

Morehead State Press Release Archive, 1961 to the Present

Press releases for August of 2023.

An Exploratory Examination Of The Cultural Understandings Of Communication Competence Among Nigerian Immigrant Adult Children, Fredous Gambo

Communication & Theatre Arts Theses

Although “communication competence” may be considered a trans-cultural concept, its unique meanings and practices across cultures have yet to be studied. Communication between parents and children in African households, for example, have often been associated with a restive and high level of control. Specifically in Nigerian households, a major critique of parenting communication styles is the necessity of continually seeking the permissions of a patriarchal and hierarchical family structure. When families immigrate, parents and children alike must navigate learning to communicate in the new culture while also seeking to preserve their culture of origin. Past research shows that adult immigrant …

Perceived Teacher Confirmation And The Online Classroom: Capturing Student Descriptions Of Experiences With Faculty Online, Ashley Jones-Bodie, Lindsey Anderson, Jennifer Hall

Journal of Communication Pedagogy

This study explored and examined students’ perceptions of teacher confirmation, those behaviors that teachers engage in that make students feel confirmed as valuable, significant individuals, as experienced in online courses. With over 450 students’ written descriptions of experiences in online classes across three different universities, this study provides an important initial examination of teaching practices in the online context. While prior research has situated study of students’ perceptions of teacher confirmation in the traditional in-person course experience, the current project extends understanding of teacher confirmation into the online setting. The study provides detailed descriptions, in students’ own words, of specific …

Undergraduate Students’ Perception Of Leadership Development Programs And Leadership Self-Efficacy, Benjamin Phillips, Juliann Sergi Mcbrayer, Brandon Hunt, Antonio Gutierrez De Blume, Katherine Fallon

Leadership, Technology & Human Development: Faculty Publications

Colleges and universities across the United States face continual pressure to meet enrollment and retention goals, as budgets in this performance-based environment continue to become more important. On-campus student involvement, such as in undergraduate leadership development programs, has been shown to have a positive influence on both student retention and success. A survey was utilized to examine leadership self-efficacy and engagement of undergraduate students that participated in campus-based leadership development programs and explore some motivators (contributing factors) and barriers (detracting factors) to involvement in those programs. One emergent theme within contributing factors to participation was alignment with personal goals (74.7%), …

Physicochemical Properties Of Poly (Ε-Caprolactone) And Magnesium Oxide Incorporated Poly (Ε-Caprolactone) Nanofibers, Daisaku Gicheha

All Theses

Polymer nanofibers are used to develop materials that possess customized characteristics for diverse applications. The applications of nanofibers are influenced by their significant surface-to-volume ratio, the porosity of the nanofiber lattice, and distinctive physicochemical characteristics. The molecular orientation of electrospun nanofibers is a crucial and intricate feature that has a direct impact on the structures and properties of the nanofiber mat. The utilization of Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), and X-Ray Diffractometry (XRD), facilitated the determination of the morphology, chemical structure, and thermal properties of nanofibers. The SEM analysis revealed that the …

Children First: Women’S Perspectives On Evacuation At Fuego Volcano And Implications For Disaster Risk Reduction, Beth A. Bartel, Ailsa K. Naismith

Michigan Tech Publications

As major drivers of behavior during crisis, cultural norms influence how disasters differentially affect people of different genders. Cultural gender norms also impact how authorities and at-risk populations approach disaster risk reduction strategies. At Fuego volcano, Guatemala, we applied qualitative methods to investigate women’s experiences of the evacuation process after a paroxysmal eruption on 7–8 March 2022. While participants’ experiences and decisions varied, we identified how gender influences evacuation dynamics within communities at Fuego volcano, including who evacuates and who decides at the community and household levels. We find that communities prioritized women for evacuation with the children and elderly …

The Relationship Between Student Academic Performance, Pre And In-College Factors, And Trends Since Covid-19 At An Hbcu, Bequita Venise Pegram

All Dissertations

This study used the Ecological System theory developed by Bronfenbrenner (1992) to understand African American students’ academic performance at Historically Black Colleges and Universities (HBCU). The systems include the microsystem (for example, family, school, and peers), mesosystem (for example, relationships between different microsystems), exosystem (for example, community and societal institutions), and macrosystem (for example, cultural and societal values) (Peppler, 2017). These systems can all have an impact on student academic performance.

This quantitative study utilized archival data to examine three research questions to reveal the relationship between student academic performance and (a) pre-college factors (high school GPA and SAT), (b) …

Design And Implementation Of A Renewable Energy Research Platform In The Power Generation, Anthony Duran Hill

All Dissertations

Over the past century or two, the interest in energy efficiency, Renewable Energy Generation in the power grid, energy cost, environmental protection, cyber-security, and the development of electric vehicles (EV) technology have been increasing. A research study on air pollution regulations in the USA, Asia, and Europe, as well as other major countries, showed that fossil-fueled vehicles were chosen as the significant source of emissions that created air pollution, leading to the global warming crisis. The oil resources on the earth are decreasing, and the new discoveries of these resources are at a more sluggish stride than the increase in …

Development Of Large-Scale Pseudo-3d Shear Wave Velocity Models At The Garner Valley Downhole Array Site, Isabella Corey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In order to design structures that can withstand anticipated earthquake loads, it is first necessary to understand the behavior of the subsurface when subjected to ground motions. To achieve this, different models and approaches have been proposed in recent decades, each with the aim of estimating how site-specific stratigraphy can amplify and/or scatter seismic waves. All of these methods require, to varying extents, information about the types of soil layers, their thickness, their stiffnesses (represented by a shear wave velocity profile), and lateral variability across the site. This last characteristic is often both difficult and costly to determine. Past research …

Demystifying The Elusive Quest For Cyber Insurance Protection: The Need For New Contract Language, Deborah L. Johnson

Cardozo Law Review

Cyberattacks and electronic data breaches are on the rise, and the costs associated with those breaches can be astronomical. In response, the insurance industry has created a specialty market for cyber coverage. However, despite the number of cyber insurance policies currently offered on the market, insurers frequently deny claims for cyber coverage under both these specialty and traditional policies.

Examining the evolution of cyberattacks, data breaches, and the massive harm they can cause to businesses, this Article explores the legal and market obstacles to obtaining adequate cyber insurance coverage and offers potential solutions to policyholders and insurers to satisfy this …

Effects Of A Mindfulness-Based Leadership Training On Leadership Behaviors And Effectiveness, Nina Tan, Eva Katharina Peters, Jochen Reb

Research Collection Lee Kong Chian School Of Business

Objectives: Organizations increasingly integrate mindfulness elements into their leadership development. However, there is limited evidence supporting the efficacy of mindfulness-based leadership training (MBLT) due to a scarcity of intervention studies. Theoretically, little is known about mediating mechanisms through which MBLT might affect leadership effectiveness. Thus, this research examined whether MBLT can improve leadership effectiveness and whether leadership behaviors mediated this effect.MethodsWe conducted a quasi-experimental study conducted in a real-world setting with an active control condition. Sixty leaders from various industries participated in either a 2-day intensive MBLT workshop followed by three individual coaching sessions over 3 months, or a presentation …

Computational Analysis Of Antibody Binding Mechanisms To The Omicron Rbd Of Sars-Cov-2 Spike Protein: Identification Of Epitopes And Hotspots For Developing Effective Therapeutic Strategies, Mohammed Alshahrani

Computational and Data Sciences (PhD) Dissertations

The advent of the Omicron strain of SARS-CoV-2 has elicited apprehension regarding its potential influence on the effectiveness of current vaccines and antibody treatments. The present investigation involved the implementation of mutational scanning analyses to examine the impact of Omicron mutations on the binding affinity of four categories of antibodies that target the Omicron receptor binding domain (RBD) of the Spike protein. The study demonstrates that the Omicron variant harbors 23 unique mutations across the RBD regions I, II, III, and IV. Of these mutations, seven are shared between RBD regions I and II, while three are shared among RBD …

Creating Information-Literate Musicians In The Academic Library, Z. Sylvia Yang, Jessica M. Abbazio, Angela L. Pratesi

Library Faculty Publications

For musicians, the act of creation is multifaceted: musicians perform, analyze, write, speak, and teach in highly collaborative and diverse environments. Information-literate musicians require training to understand and engage with the myriad kinds of content and materials inherent to the contemplation, study, creation, and enjoyment of music.

The various information needs of musicians requires creators to make many choices--from selecting a particular score edition or recording from many similar options, to employing a specific scholarly or pedagogical methodology to their work, musicians require the skills to critically evaluate information and determine its usefulness. Music’s ubiquity adds a further layer of …

Road Map Of Semiconductor Metal-Oxide-Based Sensors: A Review, Taposhree Dutta, Tanzila Noushin, Shawna Tabassum, Satyendra K. Mishra

Electrical Engineering Faculty Publications and Presentations

Identifying disease biomarkers and detecting hazardous, explosive, flammable, and polluting gases and chemicals with extremely sensitive and selective sensor devices remains a challenging and time-consuming research challenge. Due to their exceptional characteristics, semiconducting metal oxides (SMOxs) have received a lot of attention in terms of the development of various types of sensors in recent years. The key performance indicators of SMOx-based sensors are their sensitivity, selectivity, recovery time, and steady response over time. SMOx-based sensors are discussed in this review based on their different properties. Surface properties of the functional material, such as its (nano)structure, morphology, and crystallinity, greatly influence …

Pan University Modules (Uem Discussion Paper), Barry J. Ryan, Fionnuala Darby, Shaun Ferns

Group Reports

This discussion paper outlines the development and implementation of TU Dublin’s Pillar Modules, designed to enhance the university’s educational model and align with its Strategic Intent to 2030. The Pillar Modules, categorised under People, Planet, and Partnership, aim to provide a unique and interdisciplinary learning experience that embodies the university’s vision and values. The paper details the principles of Pillar Modules, including their role in promoting equity, sustainability, and digital literacy. It explores various options for integrating these modules into the existing curriculum, emphasising the need for resource restructuring and interdisciplinary collaboration. The document also discusses the potential for expanding …

Sulfur Cycling Connects Microbiomes And Biogeochemistry In Deep-Sea Hydrothermal Plumes, Zhichao Zhou, Patricia Q. Tran, Alyssa M. Adams, Kristopher Kieft, John A. Breier, Caroline S. Fortunato, Cody S. Sheik, Julie A. Huber, Meng Li, Gregory J. Dick, Karthik Anantharaman

School of Earth, Environmental, & Marine Sciences Faculty Publications

In globally distributed deep-sea hydrothermal vent plumes, microbiomes are shaped by the redox energy landscapes created by reduced hydrothermal vent fluids mixing with oxidized seawater. Plumes can disperse over thousands of kilometers and their characteristics are determined by geochemical sources from vents, e.g., hydrothermal inputs, nutrients, and trace metals. However, the impacts of plume biogeochemistry on the oceans are poorly constrained due to a lack of integrated understanding of microbiomes, population genetics, and geochemistry. Here, we use microbial genomes to understand links between biogeography, evolution, and metabolic connectivity, and elucidate their impacts on biogeochemical cycling in the deep sea. Using …

Electrosteric Control Of The Aggregation And Yielding Behavior Of Concentrated Portlandite Suspensions, Sharu Bhagavathi Kandy, Narayanan Neithalath, Mathieu Bauchy, Aditya Kumar, Edward Garboczi, Torben Gaedt, Samanvaya Srivastava, Gaurav Sant

Materials Science and Engineering Faculty Research & Creative Works

Portlandite (calcium hydroxide: CH: Ca (OH)2) suspensions aggregate spontaneously and form percolated fractal aggregate networks when dispersed in water. Consequently, the viscosity and yield stress of portlandite suspensions diverge at low particle loadings, adversely affecting their processability. Even though polycarboxylate ether (PCE)-based comb polyelectrolytes are routinely used to alter the particle dispersion state, water demand, and rheology of similar suspensions (e.g., ordinary portland cement suspensions) that feature a high pH and high ionic strength, their use to control portlandite suspension rheology has not been elucidated. This study combines adsorption isotherms and rheological measurements to elucidate the role of PCE composition …

Fem Simulations Of Plasmon Field Enhancement In Gold Nanoparticle Dimers And Gold Nanoparticle-Nanorod Dimers, Edward J. Lipchus

Graduate Masters Theses

Plasmon resonance refers to the collective oscillation of free electrons in a nanomaterial in response to an incident electromagnetic field. When two plasmonic nanoparticles are placed close together, their localized surface plasmon resonances can couple and interact. The resulting plasmonic coupling leads to the formation of new plasmonic modes in the dimer system, significantly enhancing the electromagnetic fields in the vicinity of the nanoparticles, with various interesting and potentially useful applications. This thesis investigates the optical field enhancement arising from gold nanoparticle dimers in an aqueous dielectric medium, using the Finite Element Method simulation software COMSOL Multiphysics. The simulations provide …

Speaker Diarization Of Noisy Classrooms From A Single Microphone Based On An Array Of Virtual Microphones And Machine Learning, Richard Briggs

Electrical and Computer Engineering ETDs

Speaker diarization from a single microphone is extremely challenging in noisy classroom environments. A new method based on simulating a microphone array has shown promising results, while requiring very little training. It used a minimum distance classifier to identify the speaker among a list of possible speakers. This thesis investigates machine learning methods for determining the speaker. The AOLME dataset that was used contains 758 samples totaling 894.4 seconds. Each is taken from a noisy classroom environment, focusing on five speakers - any one of whom could be active in a given sample - lasting an average of 1.2 seconds. …

The Black Box Of Enrollment Management: The Influence Of Academic Capitalism And Values Of The Public Good, Kamala C. Kiem

Graduate Doctoral Dissertations

The study addresses the widening income and racial access gap in higher education resulting from enrollment management teams’ operationalization of academic capitalism. The study focuses on the local, micro level, emphasizing how enrollment management leadership teams make sense of enrollment management, recognizing that enrollment management and the work of enrollment management stakeholders exist within an organizational space encompassing the values of both public good and academic capitalism. Using a case study methodology and critical sensemaking theory, the research explored how academic capitalism and values of the public good shaped enrollment management leadership teams’ sensemaking and sensegiving as they enacted decisions, …

Programmable Processing-In-Memory Core And Cluster Design And Verification, Namita Bhosle

Theses

The surge in demand for semiconductors and AI-driven applications has led to an amplified requirement for swift and efficient semiconductor design production cycles. These shortened cycles, however, pose a challenge as they reduce the time available for complex chip design and verification, consequently increasing the likelihood of producing error-prone chips. Current research concentrates on utilizing a Lookup Table (LUT) based pPIM (Programmable Processor in Memory) technology to deliver efficient, low-latency, and low-power computation specifically tailored to 4-bit data requirements, ideal for repetitive and data-expensive AI algorithms. This thesis presents the user-defined Generation 2 pPIM, a redesigned and enhanced version of …

Biomimetic Aerosol Exposure System For In Vitro Human Airway Exposure Studies, Samantha Emma Sarles

Theses

Tobacco use remains the number one cause of preventable death in the United States, disproportionately affecting residents of rural areas, people who are financially disadvantaged, and adults who identify as gay, lesbian, or bisexual. The impact that electronic cigarettes will have on public health is not yet fully understood. Combinations of electronic cigarette products, human airway geometries, and user behaviors create barriers to understanding products’ interaction with the human airway and their health effects. Current in vitro emissions systems, also called smoking robots, lack biomimicry, use unrealistic flow conditions, produce unrealistic aerosol dose, and provide inaccurate bio-mechanical cues to cell …

Analyzing The Atomic And Electronic Structures Of Oxide Heterostructures For Electrolyte Applications In Solid Oxide Fuel Cells, Jason D. Rakowsky

Theses

Perovskite oxide heterostructures have key applications in technologies such as solid oxide fuel cells (SOFCs), batteries, solar cells, etc. because of novel properties at the interface. Although it is well-known that this is caused by lattice mismatch and misfit dislocations, the role defects play in enhancing certain properties is unknown. We have investigated SrTiO$_3$ (STO) and BaZrO$_3$ (BZO) structures because they both experience novel oxygen vacancy formation which is desired for high ionic conductivity applications such as the thin film electrolyte of a SOFC. Through explicit density functional theory calculations of four STO/BZO interfaces, electron migration, oxygen vacancy formation energies, …

Text Restoration In Palimpsested Historical Manuscripts Using Deep Learning Methods, Anna Starynska

Theses

Historical palimpsests are manuscripts that have more than one layer of text, where the original text was erased, and subsequent layers overwritten. For many centuries, palimpsested text of ancient manuscripts was considered impossible to recover. Nowadays, with new technology, such as multispectral imaging, under some portion of electromagnetic spectrum illumination, the overwritten text can become visible again. This peculiar property of faded ink and some traditional signal processing methods had already helped recover text from numerous manuscripts. Nevertheless, even showing the best performance, existing methods can only enhance the visibility of the text but not eliminate the effects of occlusion …

Optimized Generative Pre-Training Eeg To Sentiment Classification (Ogptsc), Amira Hassan

Theses

This research aims to revolutionize electroencephalogram (EEG) analysis by proposing and developing an innovative method for sentiment classification, introducing the groundbreaking "Optimized Chat Generative Pre-training EEG to Sentiment Classification (OGPTSC)." This novel approach harnesses the power of Generative Pre-training (GPT2) as the vocabulary language model while utilizing an intelligent hyper-parameter selection method to fine-tune and optimize the model's performance. Extensive testing is conducted on a widely recognized dataset to evaluate the OGPTSC's prowess, demonstrating its exceptional capabilities in sentiment classification. Notably, this research extends its scrutiny beyond the OGPTSC by applying the same hyper-parameter selection technique to well-established models such …

Spectral Broadening Effects On Pulsed-Source Digital Holography, Steven A. Owens, Mark F. Spencer, Glen P. Perram

Faculty Publications

Using a pulsed configuration, a digital-holographic system is setup in the off-axis image plane recording geometry, and spectral broadening via pseudo-random bit sequence is used to degrade the temporal coherence of the master-oscillator laser. The associated effects on the signal-to-noise ratio are then measured in terms of the ambiguity and coherence efficiencies. It is found that the ambiguity efficiency, which is a function of signal-reference pulse overlap, is not affected by the effects of spectral broadening. The coherence efficiency, on the other hand, is affected. As a result, the coherence efficiency, which is a function of effective fringe visibility, is …

Care Transition Assessment Redesign In The Acute Care Setting, Darla M. Johnston

Electronic Theses and Dissertations

There is a gap in case management professional practice with a lack of consistent, research-based transition evaluation (TE) tools available and used in practice. An evidence-based case management TE is necessary to develop a holistic and comprehensive discharge plan for hospitalized patients. Updating and implementing an evidence-based case management TE would positively impact the transition of care and promote improved health outcomes including a reduction in readmissions. This quality improvement project used a quantitative nonexperimental, interventional pretest-posttest design. Kirkpatrick’s multidimensional knowledge attitudes assessment (KAP) education evaluation model was used to assess (1) the influence an educational offering on evidence-based assessment …

The Effect Of Energy Consumption, Income, And Population Growth On Co2 Emissions: Evidence From Nardl And Machine Learning Models, Mansoor Ahmed, Wen Huan, Nafees Ali, Ahsan Shafi, Muhsan Ehsan, Kamal Abdelrahman, Saiq Shakeel Abbasi, Anser Ali Khan, Mohammed S. Fnais

Student Publications [Scholarly]

With population and income growth, the need for energy has increased in developing and emerging economies, which has inevitably led to an increase in carbon dioxide emissions (CO₂e). This paper investigates the impact of energy consumption on CO₂e influenced by population growth, energy consumption per capita, and income. In particular, this paper investigates whether or not an increase in energy consumption, energy intensity, energy consumption per capita, population growth, and income impacts CO₂e in China, India, and the USA. The study applied the non-linear Autoregressive distributed lag (NARDL) and machine learning techniques. We found …

Decommissioning Liability At The End Of Offshore Oil And Gas: A Review Of International Obligations, National Laws, And Contractual Approaches In Ten Jurisdictions, Martin Lockman, Martin Dietrich Brauch, Esteban F. Fresno Rodríguez, José Luis Gallardo Torres

Sabin Center for Climate Change Law

Offshore oil and gas infrastructure faces an existential threat: the increasingly pressing need to address the climate emergency. The Intergovernmental Panel on Climate Change projects that GHG emissions from existing and planned fossil fuel infrastructure will push global warming past the Paris Agreement’s 1.5°C threshold, and more detailed projections estimate that “nearly 60 per cent of oil and fossil methane gas ... must remain unextracted to keep within a 1.5 °C carbon budget.” The growing urgency of climate action, coupled with the increasing adoption of renewable energy systems and energy-efficient technologies, may strand thousands of offshore oil and gas installations …

Proceedings Of The 2023 Berry Summer Thesis Institute, University Of Dayton. University Honors Program

Proceedings of the Berry Summer Thesis Institute (2013-Present)

Thanks to a gift from the Berry Family Foundation and the Berry family, the University Honors Program launched the Berry Summer Thesis Institute in 2012. The institute introduces students in the University Honors Program to intensive research, scholarship opportunities and professional development. Each student pursues a 12-week summer thesis research project under the guidance of a UD faculty mentor. This contains the product of the students' research.

Contents:

• “How Porous Materials Affect the Boundary-Layer Transition of Hypersonic Flight Vehicles” (Megan C. Sieve)
• “Ultra-Stretchable, Self-Healing, DLP 3D-Printed Elastomers for Damage-Resistant Soft Robots: A Review” (Robert M. A. Drexler)
• “Extrapolation of Scalar …