Digital Commons Network^™

Theory And Tools: The Future Of Technology-Based Learning (Slides), Andrew S. Gibbons Iii

Faculty Publications

We are entering a narrow passage that will see great instability in learning technology, instruction, and distance education. My purpose is to talk about two changes that I believe will redirect the entire future of technology-based education.

Theory And Tools: The Future Of Technology-Based Learning (Script), Andrew S. Gibbons Iii

Faculty Publications

We are entering a narrow passage that will see great instability in learning technology, instruction, and distance education. My purpose is to talk about two changes that I believe will redirect the entire future of technology-based education.

Enhancing Curcumin’S Therapeutic Potential In Cancer Treatment Through Ultrasound Mediated Liposomal Delivery, Remya Radha, Vinod Paul, Shabana Anjum, Ayache Bouakaz, William G. Pitt, Ghaleb A. Husseini

Faculty Publications

Improving the efficacy of chemotherapy remains a key challenge in cancer treatment, considering the low bioavailability, high cytotoxicity, and undesirable side effects of some clinical drugs. Targeted delivery and sustained release of therapeutic drugs to cancer cells can reduce the whole-body cytotoxicity of the agent and deliver a safe localized treatment to the patient. There is growing interest in herbal drugs, such as curcumin, which is highly noted as a promising anti-tumor drug, considering its wide range of bioactivities and therapeutic properties against various tumors. Conversely, the clinical efficacy of curcumin is limited because of poor oral bioavailability, low water …

Effects Of College Physical Activity Instructors' Enthusiasm On Student Experiences In Class, David C. Barney, Teresa Leavitt Dr.

Faculty Publications

It is hoped that teachers in all content areas will be excited, or enthusiastic for what they will be teaching their students. A teacher’s enthusiasm in class can be beneficial to students (Locke & Woods, 1982). Teacher enthusiasm also applies in college physical activity classes. This study investigated college physical activity instructor’s perception and opinions their enthusiasm and how it may affect the student’s experiences in class. For this study 10 college physical activity instructors were surveyed. Generally, the college physical activity felt that when they initiate conversations with students, listen to students, and are excited about what they are …

College Students' Perceptions And Opinions Of Their Physical Activity Instructor Being Caring In Class, David C. Barney, Kamora Shelton, Katelyn Rogers, Teresa Leavitt Dr.

Faculty Publications

College can be a very impressionable time for a student, both positively and negatively. One way the college experience can be positive is the interactions the student has with their professors/instructors (hereafter the term instructor will be used). One behavior the instructors can exhibit including in physical activity (PA) classes is being caring or showing caring behaviors toward students. The purpose of this study was to investigate college students’ perceptions of the impact of PA instructor caring behaviors toward the student. For this study 69 college students (45 males and 24 females) were surveyed with one open-ended survey question. It …

A Redox-Reversible A/B-Site Co-Doped Bafeo3 Electrode For Direct Hydrocarbon Solid Oxide Fuel Cells, Haixia Li, Wanhua Wang, Kai Zhao, Ka-Young Park, Taehee Lee, Ramin Babazadeh Dizaj, Andreas Heyden, Dong Ding, Fanglin Chen

Faculty Publications

Solid oxide fuel cells (SOFCs) can directly convert the chemical energy in fuel to electrical energy with fuel flexibility; however, the conventional nickel-based anodes face great challenges due to coking upon direct oxidation of hydrocarbon fuels and redox instability. Thus, developing new anode materials which can provide high coking resistance as well as redox stability is crucial. In this work, Ba_0.6La_0.4Fe_0.8Mo_0.1Ni_0.1O_3−δ (BLFMN) has been synthesized in air using a sol–gel combustion method, resulting in a dual phase consisting of a cubic BLFMN main phase and scheelite BaMoO_{4 …}

A Redox-Reversible A/B-Site Co-Doped Bafeo3 Electrode For Direct Hydrocarbon Solid Oxide Fuel Cells, Haixia Li, Wanhua Wang, Kai Zhao, Ka-Young Park, Taehee Lee, Ramin Babazadeh Dizaj, Andreas Heyden, Dong Ding, Fanglin Chen

Faculty Publications

Solid oxide fuel cells (SOFCs) can directly convert the chemical energy in fuel to electrical energy with fuel flexibility; however, the conventional nickel-based anodes face great challenges due to coking upon direct oxidation of hydrocarbon fuels and redox instability. Thus, developing new anode materials which can provide high coking resistance as well as redox stability is crucial. In this work, Ba_0.6La_0.4Fe_0.8Mo_0.1Ni_0.1O_3−δ (BLFMN) has been synthesized in air using a sol–gel combustion method, resulting in a dual phase consisting of a cubic BLFMN main phase and scheelite BaMoO_{4 …}

Techno-Economic Optimization Of A Hybrid Energy System With Limited Grid Connection In Pursuit Of Net Zero Carbon Emissions For New Zealand, Daniel Hill, Shafiqur Rahman Tito, Michael Walmsley, John Hedengren

Faculty Publications

As New Zealand moves towards net zero carbon emissions by 2050, multiple factors must be considered including increased electrical load due to electrification, variability of renewable energy generators, required storage capacity, system economics and limitations on grid transmission capacity. Complex and region-specific interactions between the various design choices involved are likely to require an understanding of a range of optimal and near-optimal designs for proposed micro-grid systems as opposed to a single optimal point. This work develops a novel multiscale optimization algorithm for optimization from a univariate capacity optimization approach to a multivariate one. This enhanced algorithm is applied to …

Incorporating Solvent Effects In Dft: Insights From Cation Exchange In Faujasites, An T. Ta, Ayoub Daouli, R. Seaton Ullberg, Eric Fonseca, Vanessa Proust, Agnès Grandjean, Richard G. Hennig, Hans Conrad Zur Loye, Michael Badawi, Simon R. Phillpot

Faculty Publications

Zeolites are versatile materials renowned for their extra-framework cation exchange capabilities, with applications spanning diverse fields, including nuclear waste treatment. While detailed experimental characterization offers valuable insight, density functional theory (DFT) proves particularly adept at investigating ion exchange in zeolites, owing to its atomic and electronic resolution. However, the prevalent occurrence of zeolitic ion exchange in aqueous environments poses a challenge to conventional DFT modeling, traditionally conducted in a vacuum. This study seeks to enhance zeolite modeling by systematically evaluating predictive differences across varying degrees of aqueous solvent inclusion. Specifically focusing on monovalent cation exchange in Na-X zeolites, we explore …

Reducing Non-Communicable Diseases Among Palestinian Populations In Gaza: A Participatory Comparative And Cost-Effectiveness Modeling Assessment, Sanjay Basu, John S. Yudkin, Mohammed Jawad, Hala Ghattas Ph.D., Bassam Abu Hamad, Zeina Jamaluddine, Gloria Safadi, Marie Elizabeth Ragi, Raeda El Sayed Ahmad, Eszter P. Vamos, Christopher Millett

Faculty Publications

We sought to assess the effectiveness and cost-effectiveness of potential new public health and healthcare NCD risk reduction efforts among Palestinians in Gaza. We created a microsimulation model using: (i) a cross-sectional household survey of NCD risk factors among 4,576 Palestinian adults aged ≥40 years old in Gaza; (ii) a modified Delphi process among local public health experts to identify potentially feasible new interventions; and (iii) reviews of intervention cost and effectiveness, modified to the Gazan and refugee contexts. The survey revealed 28.6% tobacco smoking, a 40.4% prevalence of hypertension diagnosis (with a 95.6% medication treatment rate), a 25.6% prevalence …

Multiscale Modeling Of Oxygen Evolution Through Generated Bilayer Porous Transport Layers For Pemwe Performance Improvement, M. Sepe, G.-H. Jung, G.S- Doo, C.-S. Lee, H.-S. Cho, N. Tippayawong, Sirivatch Shimpalee

Faculty Publications

Optimization of proton exchange membrane water electrolyzers (PEMWE) has become a focus of researchers looking for a reliable way to generate power. A vital component to PEMWE operation is the porous transport layer (PTL) on the anode side, which is where oxygen is produced. The PTL must allow water access to the catalyst layer and remove oxygen simultaneously. In this work, a previously developed imaging technique is used to generate bilayer PTL structures. A multiscale modeling approach was used to study the effect of a bilayer PTL on oxygen evolution and PEMWE performance. First, a micro scale model was used …

Speech, Voice, And Language Outcomes Following Deep Brain Stimulation: A Systematic Review, Fatemeh Tabari, Joel I. Berger, Oliver Flouty, Brian Copeland, Jeremy D. Greenlee, Karim Johari

Faculty Publications

Background Deep brain stimulation (DBS) reliably ameliorates cardinal motor symptoms in Parkinson’s disease (PD) and essential tremor (ET). However, the effects of DBS on speech, voice and language have been inconsistent and have not been examined comprehensively in a single study. Objective We conducted a systematic analysis of literature by reviewing studies that examined the effects of DBS on speech, voice and language in PD and ET. Methods A total of 675 publications were retrieved from PubMed, Embase, CINHAL, Web of Science, Cochrane Library and Scopus databases. Based on our selection criteria, 90 papers were included in our analysis. The …

Clear Speech Effects In Production Of Sentence-Medial Mandarin Lexical Tonesa), Jack Rittenberry, Irina A. Shport

Faculty Publications

Adding to limited research on clear speech in tone languages, productions of Mandarin lexical tones were examined in pentasyllabic sentences. Fourteen participants read sentences imagining a hard-of-hearing addressee or a friend in a casual social setting. Tones produced in clear speech had longer duration, higher intensity, and larger F0 values. This style effect was rarely modulated by tone, preceding tonal context, or syllable position, consistent with an overall signal enhancement strategy. Possible evidence for tone enhancement was observed only in one set of analysis for F0 minimum and F0 range, contrasting tones with low targets and tones with high targets.

How Livelihood Change Affects Food Choice Behaviors In Low- And Middle-Income Countries: A Scoping Review, Emma Kenney Mph-Pa, Krystal K. Rampalli, Sharraf Samin, Edward A. Frongillo Ph.D., Ligia I. Reyes, Shiva Bhandari, Morgan Boncyk, Stella Nordhagen, Helen Walls, Sigrid Wertheim-Heck, Amy Ickowitz, Solveig A. Cunningham, Ramya Ambikapathi, Beatrice Ekesa, Mirriam Matita, Christine E. Blake Ph.D., Rd

Faculty Publications

Livelihoods have changed dramatically over the past decade in low- and middle-income countries (LMIC). These shifts are happening in tandem with shifts in individual and household food choice behaviors. This scoping review aimed to identify and characterize mechanisms through which livelihood changes could affect food choice behaviors in LMIC, including behaviors relating to food production, acquisition, preparation, distribution, and consumption. A literature search was conducted using 4 databases: PubMed, PsycInfo, AGRICOLA, and Embase. The search was further enhanced by expert solicitations. Studies were included if they measured or focused on a livelihood change, described or assessed a change in ≥1 …

Adaptive Apparel For People With Disabilities: A Systematic Literature Review And Future Research Agenda, Md. Rafiqul Islam Rana M.S.,Ph.D, Kerri Mcbee-Black, Ishtehar Sharif Swazan

Faculty Publications

This systematic literature review examines research on adaptive apparel for people with disabilities (PWDs), an underrepresented consumer group. Using the scientific procedures and rationales for systematic literature reviews (SPAR-4-SLR) protocol and the theories, contexts, characteristics, and methods (TCCM) framework, 51 articles from three academic databases were analyzed based on specific keywords and inclusion/exclusion criteria. The review highlighted advancements addressing the needs of PWD consumers, such as innovative designs, user-centered methodologies, and inclusive marketing. However, there remain gaps in areas like disability types, methodologies, cultural factors, and societal barriers. The implications of this research underscore the urgent need for the apparel …

A Sensor-Based Simulation Method For Spatiotemporal Event Detection, Yuqin Jiang, Andrey A. Popov, Zhenlong Li, Michael E. Hodgson, Binghu Huang

Faculty Publications

Human movements in urban areas are essential to understand human–environment interactions. However, activities and associated movements are full of uncertainties due to the complexity of a city. In this paper, we propose a novel sensor-based approach for spatiotemporal event detection based on the Discrete Empirical Interpolation Method. Specifically, we first identify the key locations, defined as “sensors”, which have the strongest correlation with the whole dataset. We then simulate a regular uneventful scenario with the observation data points from those key locations. By comparing the simulated and observation scenarios, events are extracted both spatially and temporally. We apply this method …

Employing Digital Pcr For Enhanced Detection Of Perinatal Toxoplasma Gondii Infection: A Cross-Sectional Surveillance And Maternalinfant Outcomes Study In El Salvador, Mary K. Lynn, Marvin Stanley Rodriguez Aquino, Pamela Michelle Cornejo Rivas, Xiomara Miranda, David F. Torres-Romero, Hanson Cowan, Madeleine M. Meyer, Willber D. Castro-Godoy, Mufaro Kanyangarara Ph.D., Stella C.W. Self Ph.D., Ms, Berry A. Campbell, Melissa S. Nolan Ph.D., Mph

Faculty Publications

Toxoplasma gondii is a parasitic infection that can be transmitted in utero, resulting in fetal chorioretinitis and other long-term neurological outcomes. If diagnosed early, pregnancysafe chemotherapeutics can prevent vertical transmission. Unfortunately, diagnosis of acute, primary infection among pregnant women remains neglected, particularly in low-andmiddle-income countries. Clinically actionable diagnosis is complex due to the commonality of infection during childhood and early adulthood which spawn long-last antibody titers and historically unreliable direct molecular diagnostics. The current study employed a cross-sectional T. gondii perinatal surveillance study using digital PCR, a next generation molecular diagnostic platform, and a maternal-fetal outcomes survey to ascertain the …

Eliminating Rule 609 To Provide A Fair Opportunity To Defend Against Criminal Charges: A Proposal To The Advisory Committee On The Federal Rules Of Evidence, Jeffrey Bellin

Faculty Publications

Federal Rule of Evidence 609 authorizes the admission of prior convictions to impeach criminal defendants who testify. And in this important and uniquely damaging application, the [r]ule’s logic fails, distorting American trials and depriving defendants of a fair opportunity to defend against the charges. The Advisory Committee [on Evidence Rules (the “Advisory Committee”)] should propose the elimination of Rule 609 and prohibit cross-examination with specific instances of a criminal defendant’s past conduct when those instances are unrelated to the defendant’s testimony and unconnected to the case.

This short essay begins by setting out the proposed rule change alongside a proposed …

Inequitable Infrastructure: An Empirical Assessment Of Federalism, Climate Change, And Environmental Racism, Lev E. Breydo

Faculty Publications

This Article explains a critical, yet unexplored issue: How are some communities like Jackson—the 80% Black capital of Mississippi—often left without water or electricity, while their mostly white neighbors are not? The Article maps uncharted territory by interrogating the underlying causes of this disparity, untangling how three seemingly unrelated factors interplay with the accelerating effects of climate change to perpetuate systemic inequities.

First, and somewhat uniquely, the U.S. federalist construct allocates infrastructure responsibility to the states, which, under the guise of autonomy, subdelegate to often under-resourced local authorities. Second, this capital mismatch requires governmental units to borrow using complex municipal …

The Second-Order Features Adjoint Sensitivity Analysis Methodology For Response-Coupled Forward/Adjoint Linear Systems (2nd-Fasam-L): Mathematical Framework And Illustrative Application To An Energy System, Dan Gabriel Cacuci

Faculty Publications

The Second-Order Features Adjoint Sensitivity Analysis Methodology for Response-Coupled Forward/Adjoint Linear Systems (abbreviated as “2nd-FASAM-L”), presented in this work, enables the most efficient computation of exactly obtained mathematical expressions of first- and second-order sensitivities of a generic system response with respect to the functions (“features”) of model parameters. Subsequently, the first- and second-order sensitivities with respect to the model’s uncertain parameters, boundaries, and internal interfaces are obtained analytically and exactly, without needing large-scale computations. Within the 2nd-FASAM-L methodology, the number of large-scale computations is proportional to the number of model features (defined as functions of model parameters), as opposed to …

Judges Should Be Discerning Consensus, Not Evaluating Scientific Expertise, David S. Caudill, Harry Collins, Robert Evans

Faculty Publications

One of the most constructive critiques of the Daubert admissibility regime is Professor Edward Cheng’s recent proposal for a new Consensus Rule in the Federal Rules of Evidence. Rejecting the notion that judges and juries have the capacity to evaluate scientific expertise, Cheng’s proposal would eliminate Daubert hearings—and judicial gatekeeping concerning expert testimony—and require judges and juries, in their verdicts, to follow consensus in the relevant scientific community. Significantly, Cheng argues that judges and juries would have an easier time identifying consensus than they have in deciding between experts who disagree.

We find Cheng’s emphasis on consensus compelling, and …

Peritextual Elements In Chinese Nonfiction Picturebooks, Sunah Chung, Jongsun Wee, Sohyun Meacham

Faculty Publications

The present work is a comparison of the peritext typology found across various nonfiction picturebooks focusing on Chinese people, including Chinese Americans. Nineteen nonfiction books were chosen following selection methods described in previous literature. Books were individually analysed to see which of five categories they fit under, and insider/outsider status for each author and illustrator was recorded as well. All five types were found in the surveyed Chinese nonfiction picturebooks; however, none of the books encouraged readers to take action for social change. We also found slight variation in peritext usage between the insiders and outsiders for authors and illustrators. …

Do Biblical Impurity Rules Literally Apply Today?, Roy Gane

Faculty Publications

No abstract provided.

Classifying Forecasts, Michael S. Drake, James R. Moon Jr., James D. Warren

Faculty Publications

We employ a novel machine learning technique to classify analysts’ forecast revisions into five types based on how the revision weighs publicly available signals. We label these forecast types as quant, sundry, contrarian, herder, and independent forecasts. Our tests reveal that a greater diversity of forecast types within the consensus is associated with increased consensus dispersion and improved consensus accuracy. Additionally, consensus diversity is associated with an improved information environment for firms, as reflected in reduced earnings announcement information asymmetry and volatility, higher earnings response coefficients, and faster price formation. Our study sheds light on how analysts revise their forecasts …

Making Library Student Employment More Meaningful, Jeremy Myntti

Faculty Publications

Generally speaking, the twofold mission of a university includes both research and teaching. While each institution has a varying degree of focus on these two overarching missions, universities are in the business of advancing knowledge and producing high-quality graduates ready for a competitive job market.

Can Listeners Differentiate Varieties Using Prosodic Information? Lect Identification In A Persona-Matching Task, Nicole Holliday, Rachel Steindel Burdin, Paul Reed

Faculty Publications

Sociolinguists and lay people have long been interested in the mechanisms by which dialect and speaker identification occur. The current study aims to test whether realizational differences found in production studies are salient factors in identification of different lects, as well as to examine differences between groups in identification. In this study, listeners were instructed to match clips containing H* and L+H* pitch accents with specific personae who represented speakers of five lects of interest (African American English, Jewish English, Appalachian English, Southern English, and Midwestern English). Listeners from different groups (Appalachian, African American, Jewish, and those who were not …

Can Listeners Differentiate Varieties Using Prosodic Information? Lect Identification In A Persona-Matching Task, Nicole Holliday, Rachel Steindel Burdin, Paul Reed

Faculty Publications

Sociolinguists and lay people have long been interested in the mechanisms by which dialect and speaker identification occur. The current study aims to test whether realizational differences found in production studies are salient factors in identification of different lects, as well as to examine differences between groups in identification. In this study, listeners were instructed to match clips containing H* and L+H* pitch accents with specific personae who represented speakers of five lects of interest (African American English, Jewish English, Appalachian English, Southern English, and Midwestern English). Listeners from different groups (Appalachian, African American, Jewish, and those who were not …

Maternal Care Utilization And Provision During The Covid-19 Pandemic: Voices From Minoritized Pregnant And Postpartum Women And Maternal Care Providers In Deep South, Ran Zhang, Tiffany Byrd, Shan Qiao Ph.D., Myriam E. Torres Phd, Msph, Xiaoming Li Ph.D., Jihong Liu Sc.D.

Faculty Publications

Background

The COVID-19 pandemic has significantly affected maternal care services especially for minoritized individuals, creating challenges for both service users (i.e., African American and Hispanic pregnant/postpartum women) and maternal care providers (MCPs). Guided by a socioecological framework, this study aims to investigate the experiences of African American and Hispanic pregnant and postpartum women, as well as MCPs, in accessing and providing maternal care services during the COVID-19 pandemic in the Deep South.

Methods

We conducted semi-structured interviews with 19 African American women, 20 Hispanic women, and 9 MCPs between January and August 2022. Participants were recruited from Obstetrics and Gynecology …

Structural Homology Of Mite Profilins To Plant Profilins Is Not Indicative Of Allergic Cross-Reactivity, Andrea O'Malley, Sahana Sankaran, Avery Carriuolo, Kriti Khatri, Krzysztof Kowal, Maksymilian Chruszcz Ph.D.

Faculty Publications

Structural and allergenic characterization of mite profilins has not been previously pursued to a similar extent as plant profilins. Here, we describe structures of profilins originating from Tyrophagus putrescentiae (registered allergen Tyr p 36.0101) and Dermatophagoides pteronyssinus (here termed Der p profilin), which are the first structures of profilins from Arachnida. Additionally, the thermal stabilities of mite and plant profilins are compared, suggesting that the high number of cysteine residues in mite profilins may play a role in their increased stability. We also examine the cross-reactivity of plant and mite profilins as well as investigate the relevance of these profilins …

Study Of Interface Charges Between In-Situ Grown Dielectric And Gan/Algan Hfet Structure By Metal-Organic Chemical Vapor Deposition, Muhammad Hassan Tahir, Nifat Jahan, Md Ghulam Zakir

Faculty Publications

The integration of an oxide layer in metal-oxide-semiconductor high electron mobility transistors (MOSHFETs) plays a crucial role in minimizing gate leakage current and enabling wider gate voltage swings. In this study, we present the fabrication and characterization of GaN/AlGaN heterostructure field-effect transistors (HFETs) capped with a Ga₂O₃ dielectric layer. The oxide was deposited via an in-situ process within a single MOCVD reactor without vacuum interruption. Our findings demonstrate that the in-situ capped HFETs exhibit a significantly lower interface charge density of 4 × 10¹² cm⁻² compared to 1 × 10¹³ cm⁻²·eV⁻¹ observed in ex-situ grown counterparts. These results highlight the …