Digital Commons Network^™

In Our Own Words: Institutional Betrayals, Reshmi Dutt-Ballerstadt

Faculty Publications

When Dr. Reshmi Dutt-Ballerstadt, professor of English at Linfield College, asked a large group of underrepresented faculty members why they left their higher education institutions, they told her the real reasons for their departures — those that climate surveys don't capture.

This essay originally appeared as part of Conditionally Accepted, a career advice blog for Inside Higher Ed providing news, information, personal stories, and resources for scholars who are, at best, conditionally accepted in academe. Conditionally Accepted is an anti-racist, pro-feminist, pro-queer, anti-transphobic, anti-fatphobic, anti-ableist, anti-ageist, anti-classist, and anti-xenophobic online community.

Hyaluronic Acid-Cellulose Composites As Patches For Minimizing Bacterial Infections, Kelsey M. Lopez, Sudhir Ravula, Rocío L. Pérez, Caitlan E. Ayala, Jack N. Losso, Marlene E. Janes, Isiah M. Warner

Faculty Publications

Copyright © 2020 American Chemical Society. A facile method was used to synthesize biocomposites containing differing ratios of hyaluronic acid (HA) and cellulose (CEL). Based on the properties of the individual polymers, the resultant composite materials may have potentially great wound care properties. In the method outlined here, 1-butyl-3-methylimidazolium chloride ([Bmim][Cl]), a simple ionic liquid, was used as the sole solvent without chemical modifiers to dissolve the biopolymers at ratios of 1:1 and 2:1 HA to CEL. This method was completely recyclable since the ionic liquid, [Bmim][Cl], can be recovered. Results from spectroscopic measurements [Fourier transform infrared (FT-IR) and X-ray …

Mirror, Mirror On The Wall: The Effect Of Listening To Body Positive Music On Implicit And Explicit Body Esteem, Sarah M. Coyne, Emilie J. Davis, Wayne Warburton, Laura Stockdale, Imogen Abba, Dean M. Busby

Faculty Publications

The current article used 3 studies to examine the impact of listening to body positive music on both explicit and implicit measures of body esteem in women. Study 1 found that women who viewed a mainstream popular body positive music video reported higher levels of body esteem than those who viewed a popular body objectifying music video. In Studies 2 and 3, we wrote and recorded our own songs to keep the musical features apart from the lyrics constant (e.g., rhythm, melody, and singer identity). Study 2 also found that women showed higher levels of implicit (but not explicit) body …

Mincing No Words: When The Court's Opinion Criticizes An Advocate's Writing, Douglas E. Abrams

Faculty Publications

In recent years, court opinions have chastised counsel’s briefs or other written submissions for such structural deficiencies as improper citations; missing exhibit labels; incomplete tables of citations; mis-numbered counts; failure to cite to the record; and skirting of court rules that regulate font size, maximum page limits, mandated margins, and the like. Beyond structure, opinions have also chastised counsel for written submissions that are “riddled with misspellings, typographical errors, punctuation errors, and grammar and usage errors” and for those marked by careless cutting-and-pasting from forms or other prior work product, or by careless reliance on spell-check.

Some opinions identify the …

Low-Phosphate Chromatin Dynamics Predict A Cell Wall Remodeling Network In Rice Shoots, Maryam Foroozani, Sara Zahraeifard, Dong Ha Oh, Guannan Wang, Maheshi Dassanayake, Aaron P. Smith

Faculty Publications

© 2020 American Society of Plant Biologists. All Rights Reserved. Phosphorus (P) is an essential plant macronutrient vital to fundamental metabolic processes. Plant-available P is low in most soils, making it a frequent limiter of growth. Declining P reserves for fertilizer production exacerbates this agricultural challenge. Plants modulate complex responses to fluctuating P levels via global transcriptional regulatory networks. Although chromatin structure plays a substantial role in controlling gene expression, the chromatin dynamics involved in regulating P homeostasis have not been determined. Here we define distinct chromatin states across the rice (Oryza sativa) genome by integrating multiple chromatin marks, including …

The Nbp35/Apbc Homolog Acts As A Nonessential [4fe-4s] Transfer Protein In Methanogenic Archaea, Cuiping Zhao, Zhe Lyu, Feng Long, Taiwo Akinyemi, Kasidet Manakongtreecheep, Dieter Söll, William B. Whitman, David J. Vinyard, Yuchen Liu

Faculty Publications

© 2019 Federation of European Biochemical Societies The nucleotide binding protein 35 (Nbp35)/cytosolic Fe-S cluster deficient 1 (Cfd1)/alternative pyrimidine biosynthetic protein C (ApbC) protein homologs have been identified in all three domains of life. In eukaryotes, the Nbp35/Cfd1 heterocomplex is an essential Fe-S cluster assembly scaffold required for the maturation of Fe-S proteins in the cytosol and nucleus, whereas the bacterial ApbC is an Fe-S cluster transfer protein only involved in the maturation of a specific target protein. Here, we show that the Nbp35/ApbC homolog MMP0704 purified from its native archaeal host Methanococcus maripaludis contains a [4Fe-4S] cluster that can …

Potential Population Growth Of Melanaphis Sacchari (Zehntner) (Hemiptera: Aphididae) Under Six Constant Temperatures On Grain Sorghum (Sorghum Bicolor L.), M. F. Souza, J. A. Davis

Faculty Publications

Sugarcane aphid, Melanaphis sacchari Zehntner (Hemiptera: Aphididae), is now widely established in sorghum, Sorghum bicolor (L.) Moench (Poaceae), production areas of the USA, and is an important economic pest. To calculate economic thresholds, population growth parameters under varied temperature conditions are needed. However, detailed laboratory studies of temperature effects on the biology and population parameters of M. sacchari since the sorghum outbreak in the US have not been performed previously. Therefore, this study evaluated the response of M. sacchari to 6 different constant temperatures (15, 20, 25, 30, 32, and 35 °C) on sorghum tissue. Aphid development, age-specific survivorship, fecundity, …

Insect Herbivores Associated With Nymphaea Mexicana (Nymphaeaceae) In Southern United States: Potential Biological Control Agents For South Africa, Megan K. Reid, Julie A. Coetzee, Martin P. Hill, Rodrigo Diaz, Lyn A. Gettys, James P. Cuda, Christopher S. Reid

Faculty Publications

Nymphaea mexicana Zuccarini (Nymphaeaceae) (Mexican waterlily) is an emergent floating-leaved aquatic plant from the southeastern USA that is invasive in South Africa. In invaded waterbodies this plant restricts water movement, increases siltation, decreases recreational activities, and can deplete water oxygen levels, which in turn negatively impacts aquatic fauna. Currently there are no chemical, mechanical, or biological control programs in place for N. mexicana in South Africa, but the sustainability of biological control makes this the most desirable option. Field surveys for potential biological control agents were conducted in the native range of N. mexicana in Florida, Louisiana, and Texas from …

Guiding And Trapping Cracks With Compliant Inclusions For Enhancing Toughness Of Brittle Composite Materials, Neal R. Brodnik, Chun Jen Hsueh, Katherine T. Faber, Blaise Bourdin, Guruswami Ravichandran, Kaushik Bhattacharya

Faculty Publications

The problem of toughening heterogeneous materials with a stiff matrix and compliant inclusions is investigated through numerical simulations and experiments. Specifically, the problem of optimizing a combination of effective toughness and effective elastic modulus in the context of a square array of compliant inclusions in a stiff matrix is explored. Crack propagation in the heterogeneous material is simulated using a variational phase-field approach. It is found that the crack can meander between or get attracted to and trapped in the inclusions. Composite specimens with a stiff matrix and compliant circular inclusions were 3D printed, and their fracture toughness was measured …

Spatial And Pregnancy-Related Changes In The Protein, Amino Acid, And Carbohydrate Composition Of Bovine Oviduct Fluid, Beatriz Rodríguez-Alonso, Veronica Maillo, Omar Salvador Acuña, Rebeca López-Úbeda, Alejandro Torrecillas, Constantine A. Simintiras, Roger Sturmey, Manuel Avilés, Patrick Lonergan, Dimitrios Rizos

Faculty Publications

Knowledge of how the biochemical composition of the bovine oviduct is altered due to the oviduct anatomy or the presence of an embryo is lacking. Thus, the aim of this study was to assess the effect of (І) oviduct anatomy and (ІІ) embryo presence on oviductal fluid (OF) protein, amino acid, and carbohydrate composition. Cross-bred beef heifers (n = 19) were synchronized and those in standing estrus were randomly allocated to a cyclic (non-bred) or pregnant (artificially inseminated) group. All heifers were slaughtered on Day 3 after estrus. The oviducts ipsilateral to the corpus luteum from each animal were isolated, …

How Children Experience Grief, Natalie Dorland, S. Joseph Kidder

Faculty Publications

Children grieve internally just as much as adults, and they are far less equipped to handle their emotions. Children desperately need pastors and church members to pay attention to them and minister to their needs in times of grief. How do we effectively do that, especially depending on their age group?

My Ethical Church: What Does It Really Mean To Live An Ethical Life?, Annetta M. Gibson

Faculty Publications

No abstract provided.

Hydrogen Peroxide Triggers An Increase In Cell Surface Expression Of System XC− In Cultured Human Glioma Cells, Leah A. Chase, Mary Verheulen Kleyn, Natasha Schiller, Abby Goltz King, Guillermo Flores, Sasha Balcazar Engelsman, Christina Bowles, Sara Lang Smith, Anne E. Robinson, Jeffrey Rothstein

Faculty Publications

System x_c⁻ exchanges extracellular cystine for intracellular glutamate across the plasma membrane of many cell types. One of the physiological roles of System x_c⁻ is to provide cystine for synthesis of the antioxidant glutathione. Here we report that hydrogen peroxide (H₂O₂) triggers the translocation of System x_c⁻ to the plasma membrane within 10 min of the initial exposure. Specifically, we observed a three-fold increase in ³⁵S-L-cystine uptake following a 10 min exposure to 0.3 mM H₂O₂. This effect was dose-dependent with an EC₅₀ for …

Candidate Privacy, Rebecca Green

Faculty Publications

In the United States, we have long accepted that candidates for public office who have voluntarily stepped into the public eye sacrifice claims to privacy. This refrain is rooted deep within the American enterprise, emanating from the Framers' concept of the informed citizen as a bedrock of democracy. Voters must have full information about candidates to make their choices at the ballot box. Even as privacy rights for ordinary citizens have expanded, privacy theorists and courts continue to exempt candidates from privacy protections. This Article suggests that two disruptions warrant revisiting the privacy interests of candidates. The first is a …

Advances In High-Resolution Radiation Detection Using 4h-Sic Epitaxial Layer Devices, Krishna C. Mandal, Joshua W. Kleppinger, Sandeep K. Chaudhuri

Faculty Publications

Advances towards achieving the goal of miniature 4H-SiC based radiation detectors for harsh environment application have been studied extensively and reviewed in this article. The miniaturized devices were developed at the University of South Carolina (UofSC) on 8 × 8 mm 4H-SiC epitaxial layer wafers with an active area of ≈11 mm². The thicknesses of the actual epitaxial layers were either 20 or 50 µm. The article reviews the investigation of defect levels in 4H-SiC epilayers and radiation detection properties of Schottky barrier devices (SBDs) fabricated in our laboratories at UofSC. Our studies led to the development of …

Cyber-Physical Security With Rf Fingerprint Classification Through Distance Measure Extensions Of Generalized Relevance Learning Vector Quantization, Trevor J. Bihl, Todd J. Paciencia, Kenneth W. Bauer Jr., Michael A. Temple

Faculty Publications

Radio frequency (RF) fingerprinting extracts fingerprint features from RF signals to protect against masquerade attacks by enabling reliable authentication of communication devices at the “serial number” level. Facilitating the reliable authentication of communication devices are machine learning (ML) algorithms which find meaningful statistical differences between measured data. The Generalized Relevance Learning Vector Quantization-Improved (GRLVQI) classifier is one ML algorithm which has shown efficacy for RF fingerprinting device discrimination. GRLVQI extends the Learning Vector Quantization (LVQ) family of “winner take all” classifiers that develop prototype vectors (PVs) which represent data. In LVQ algorithms, distances are computed between exemplars and PVs, and …

Analysis Of Identification Method For Bacterial Species And Antibiotic Resistance Genes Using Optical Data From Dna Oligomers, Ryan L. Wood, Tanner Jensen, Cindi Wadsworth, Mark Clement, Prashant Nagpal, William G. Pitt

Faculty Publications

Bacterial antibiotic resistance is becoming a significant health threat, and rapid identification of antibiotic-resistant bacteria is essential to save lives and reduce the spread of antibiotic resistance. This paper analyzes the ability of machine learning algorithms (MLAs) to process data from a novel spectroscopic diagnostic device to identify antibiotic-resistant genes and bacterial species by comparison to available bacterial DNA sequences. Simulation results show that the algorithms attain from 92% accuracy (for genes) up to 99% accuracy (for species). This novel approach identifies genes and species by optically reading the percentage of A, C, G, T bases in 1000s of short …

Analysis Of Identification Method For Bacterial Species And Antibiotic Resistance Genes Using Optical Data From Dna Oligomers, Ryan L. Wood, Tanner Jensen, Cindi Wadsworth, Mark Clement, Prashant Nagpal, William G. Pitt

Faculty Publications

Bacterial antibiotic resistance is becoming a significant health threat, and rapid identification of antibiotic-resistant bacteria is essential to save lives and reduce the spread of antibiotic resistance. This paper analyzes the ability of machine learning algorithms (MLAs) to process data from a novel spectroscopic diagnostic device to identify antibiotic-resistant genes and bacterial species by comparison to available bacterial DNA sequences. Simulation results show that the algorithms attain from 92% accuracy (for genes) up to 99% accuracy (for species). This novel approach identifies genes and species by optically reading the percentage of A, C, G, T bases in 1000s of short …

Defining Parental Resistance: The Social Determinants Of Measles Vaccine Hesitancy, Michael C. Goates, M. Lelinneth B. Novilla, Mallory Showalter, L. Kirsten Novilla, Russell Doria, Michael Dang, Tyler Leffler, Katelyn Aldridge

Faculty Publications

The increase in vaccine-preventable disease (VPD) outbreaks has caused great alarm to the public health community. In recent years, VPD outbreaks have occurred across the globe in both developed and developing countries. Particularly troubling has been the resurgence of diseases formerly eradicated through years of concerted vaccination and other public health campaigns. Higher vaccination exemption rates have been implicated in the resurgence of VPDs. This is particularly evident in the United States where measles outbreaks reached 1,250 individual cases in 2019 alone, the most confirmed cases since 1992. Central to the discussion about measles resurgence is a better understanding of …

Cysteine Dioxygenase Enzyme Activity And Gene Expression In The Dimorphic Pathogenic Fungus Histoplasma Capsulatum Is In Both The Mold And Yeast Morphotypes And Exhibits Substantial Strain Variation, Melissa Adams, Glen Shearer

Faculty Publications

In the dimorphism (mold/yeast) Histoplasma capsulatum (Hc) literature are reports that yeast (the so-called pathogenic form) uniquely expresses a cysteine dioxygenase (CDO, approx. 10,500 dal) activity which the mold morphotype (the so-called saprophytic soil form) does not express (C.F., Kumar et al., Biochem 22, 762, 1983). This yeast-specific CDO activity is postulated to play a critical role in the mold-to-yeast shift. A number of years ago, our lab isolated the gene encoding the Hc cysteine dioxygenase (CDO1, Genbank accession AY804144) and noted significant expression in the mold morphotype of several Histoplasma strains and also determined that the predicted protein would …

Respiration By The Opportunistic Spionid Polychaete Streblospio Gynobranchiata During Adjustment To And Recovery From Moderate Hypoxia, Alyssa D. Bennett, Chet F. Rakocinski

Faculty Publications

Understanding the capacity of estuarine organisms to acclimate to stressful conditions provides insights into how communities cope within fluctuating environments. The opportunistic spionid polychaete, Streblospio gynobranchiata Rice and Levin, 1998, regularly experiences intermittent moderate hypoxia within shallow sedimentary habitats. To better understand fine-scale adjustments by this opportunistic species to short-term moderate hypoxia, the aerobic respiration response of three size classes was examined over a 12 h period and after 24 h of exposure to moderate hypoxia (i.e., 20% air saturation) at 25 °C. In addition, the capacity to resume standard respiration was examined over a 12 h period following a …

Prototyping A Social Media Flooding Photo Screening System Based On Deep Learning, Zhenlong Li Huan Ning, Michael E. Hodgson, Cuizhen Wang

Faculty Publications

This article aims to implement a prototype screening system to identify flooding-related photos from social media. These photos, associated with their geographic locations, can provide free, timely, and reliable visual information about flood events to the decision-makers. This screening system, designed for application to social media images, includes several key modules: tweet/image downloading, flooding photo detection, and aWebGIS application for human verification. In this study, a training dataset of 4800 flooding photos was built based on an iterative method using a convolutional neural network (CNN) developed and trained to detect flooding photos. The system was designed in a way that …

Financial Stressors As Catalysts For Relational Growth: Bonadaptation Among Lower-Income, Unmarried Couples, Ashley B. Lebaron, Melissa A. Curran, Xiomin Li, Jeffrey P. Dew, Trevor K. Sharp, Melissa A. Barnett

Faculty Publications

The FAAR model (Patterson in Fam Syst Med 6(2):202–237, 1988) posits that following a stressor, demands, capabilities, and meanings can contribute to bonadaptation (i.e., adaptation that promotes wellbeing). The purpose of the current study is to test how financial and relational demands, capabilities, and meanings are associated with relationship commitment and coparenting (i.e., bonadaptation) following a financial stressor. We used data from the Building Strong Families (BSF) sample (i.e., primarily lower-income, unmarried couples; N = 1396). First, results showed that predictors of coparenting were more numerous than predictors of commitment. Second, all facets of the FAAR model—demands, capabilities, and meanings—were …

The Manifestation Of Neighborhood Effects: A Pattern For Community Growth?, Michael R. Cope, Jorden E. Jackson, Scott R. Sanders, Lance D. Erickson, Tippe Morlan, Ralph B. Brown

Faculty Publications

Neighborhood effects, or the development of community by neighborhoods, are often studied in an urban context. Previous research has neglected to examine the influence of neighborhoods in nonurban settings. Our case study, however, contributes to the existing literature as it takes place in a small, rural-to-urban town at an important point in time where the town was urbanizing. We find that neighborhood effects also influence community satisfaction and attachment in Creekdale, an urbanizing town. Using survey data (N = 1006) drawn from the Creekdale Community Citizens Viewpoint Survey (CCVS), we find that, contrary to conventional wisdom, population size and density …

The Role Of Climate Change Education On Individual Lifetime Carbon Emissions, Eugene Cordero, Diana Centeno Delgado, Anne Marie Todd

Faculty Publications

Strategies to mitigate climate change often center on clean technologies, such as electric vehicles and solar panels, while the mitigation potential of a quality educational experience is rarely discussed. In this paper, we investigate the long-term impact that an intensive one year university course had on individual carbon emissions by surveying students at least five years after having taken the course. A majority of course graduates reported pro-environmental decisions (i.e., type of car to buy, food choices) that they attributed at least in part to experiences gained in the course. Furthermore, our carbon footprint analysis suggests that for the average …

Israelite Inscriptions From The Time Of Jeremiah And Lehi, Dana M. Pike

Faculty Publications

The greater the number of sources the better when investigating the history and culture of people in antiquity. Narrative and prophetic texts in the Bible and 1 Nephi have great value in helping us understand the milieu in which Jeremiah and Lehi received and fulfilled their prophetic missions, but these records are not our only documentary sources. A number of Israelite inscriptions dating to the period of 640–586 b.c., the general time of Jeremiah and Lehi, provide additional glimpses into this pivotal and primarily tragic period in Israelite history.

Developing A Fanbase In Niche Sport Markets: An Examination Of Nhl Fandom And Social Sustainability In The Sunbelt, Brandon Mastromartino, Tyreal Y. Qian, Jerred J. Wang, James J. Zhang

Faculty Publications

In the modern day sport marketplace, professional sport teams face tough competition to build and sustain a viable fan base. This study sought to address three research questions: (a) what are the factors that contribute to the socialization of sports fans in niche sport markets? (b) How do team-led and fan-led initiatives work to socialize fans? Finally, (c) to what extent do the socialization factors affect identify as a sports fan for a niche sport and overall fan consumption behavior? A questionnaire was administered to 535 NHL fans and data were analyzed through conducting an Exploratory Factor Analysis, Exploratory Factor …

Effects Of Optical Turbulence And Density Gradients On Particle Image Velocimetry, Silvia Matt, Gero Nootz, Samuel Hellman, Weilin Hou

Faculty Publications

Particle image velocimetry (PIV) is a well-established tool to collect high-resolution velocity and turbulence data in the laboratory, in both air and water. Laboratory experiments are often performed under conditions of constant temperature or salinity or in flows with only small gradients of these properties. At larger temperature or salinity variations, the changes in the index of refraction of water or air due to turbulent microstructure can lead to so-called optical turbulence. We observed a marked influence of optical turbulence on particle imaging in PIV. The effect of index of refraction variations on PIV has been described in air for …

It Looks A Bit Like This: Prototyping In An Academic Library, Holt Zaugg, Elise Silva, Greg M. Nelson, Cyndee Frasier

Faculty Publications

Prototyping is an incremental process that facilitates those looking to make changes in products, services, or resources. Originating in industrial fabrication process, prototyping can be adapted by librarians to examine changes made to library services, amenities, and resources. They offer a cost-effective way of trying something new and needed, to ensure that patron needs are met. This article modifies prototyping into a five-step process and reviews five examples where the Lee Library used prototyping to inform library decisions to inform the development of library services, amenities, processes, and resources to better serve its patrons.

School-Based Sedentary Behavior, Physical Activity, And Health-Related Outcomes Among Hispanic Children In The United States: A Cross-Sectional Study, Xiangli Gu, Tao Zhang, Senlin Chen, M. Jean Keller, Xiaoxia Zhang

Faculty Publications

The main purpose of this study was to examine the relationships between school-based sedentary behavior, physical activity, and health-related outcomes, including cardiorespiratory fitness, weight status, and health-related quality of life (HRQOL) among Hispanic children. The participants were 374 children (192 boys, 182 girls; Mage = 9.64) recruited from four elementary schools from 3rd grade through to 5th grade. Sedentary behavior and physical activity behaviors (light physical activity [LPA] and moderate-to-vigorous physical activity (MVPA)) during school were measured by accelerometers. Cardiorespiratory fitness and weight status were measured using the FITNESSGRAM®, while HRQOL was measured using the PedsQL 4.0™ Spanish version, a …