Digital Commons Network^™

Gender Gaps And Economic Growth: Why Haven't Women Won Globally (Yet)?, Patrick Agte, Orazio Attanasio, Pinelopi K. Goldberg, Charles Gottlieb, Aishwarya Lakshmi Ratan, Rohini Pande, Michael Peters, Charity Troyer Moore, Fabrizio Zilibotti

Discussion Papers

Globally women’s labor force participation lags that of men and women, on average, have lower labor market earnings than men. Does economic growth reduce gender disparities in labor market outcomes between women and men? Conversely, do gender inequalities in the labor market impede growth? To inform these questions, we conduct two analyses. First, we estimate regressions using harmonized data on gender gaps in a range of labor market outcomes from 153 countries spanning two decades (1998-2018). Second, we conduct a systematic review of the recent economics literature on gender gaps in labor markets, examining 16 journals over 21 years. Our …

A Rodent Model Of Enhanced Anticipation Of Positive Events: Sex-Specific Modifications In Cognitive Bias And Emotional Resilience, Sarah C. Hartvigsen, Megan Hooper, Olivia Harding, Evelyn Barringer, Aditya Narayanan, Brendan Crockett, Yulia Shatalov, Paean Luby, Braden Wixted, Molly Kent, Kelly Lambert

Psychology Faculty Publications

While it is known that chronic unpredictable stress and negative events adversely affect neurobiological outcomes, much less is known regarding the neurobiological impact of positive emotions such as chronic anticipation of appetitive events. From a translational perspective, an enhanced understanding of the impact of extended exposure to positive emotions may provide novel insights into effective non-pharmacological, behavior-based approaches to enhance mental resilience. Here, we investigate a novel rodent model of chronic Unpredictable Positive Event Response (UPER) training in male and female Long Evans rats to examine behavioral, neural, and endocrine effects of enhanced anticipation of positive events. Rats were exposed …

A New Subspecies Of Celastrina Lucia (W. Kirby) (Lycaenidae: Polyommatinae) In The Central Appalachian Mountain Region, Harry Pavulaan

The Taxonomic Report of the International Lepidoptera Survey

The Celastrina (“Azure”) populations of the central Appalachian Mountain region have traditionally been identified as Celastrina ladon (Cramer) by numerous authors. However, the discovery of elongated dorsal wing scales in males of C. ladon (Wright & Pavulaan, 1999; Ômura et al., 2015) established that this diagnostic trait is limited to C. ladon, C. nigra (W. Forbes), and subsequently C. iryna (Pavulaan). Microscopic examination of male “Spring Azure” specimens from higher elevations in the Appalachian Mountains revealed a complete absence of these elongated scales in the resident populations, despite their outward resemblance to C. ladon …

The Relationship Between Light Physical Activity And 10-Year Weight Change In 2,868 U.S. Adults: A National Health And Nutrition Examination Survey Investigation, Chloe Diane Cory

Theses and Dissertations

The prevalence of obesity has steadily increased over the past several decades. About 13.4% of Americans aged 20-74 had obesity in 1960-1962 and the prevalence has steadily increased to 40.3% in 2021-2023--more than a 3-fold increase. PURPOSE: The aim of this study was to evaluate the relationship between time spent in light physical activity (LPA) and 10-year weight change in a random sample of 2868 women and men representative of the U.S. adult population. METHODS: Data were used from the National Health and Nutrition Examination Survey (NHANES) from the 2003-2006 data cycles. Participants were limited to non-pregnant U.S. …

A Geological And Geochemical Study Of The Philipsburg Mining District, Granite County, Montana, Celine M. Beaucamp

Graduate Theses & Non-Theses

The Philipsburg district, renowned for its rich mining history, has contributed significantly to Montana's mineral production, ranking as the state's second-most productive district. Active from 1865 to the 1980s, it yielded an impressive array of Ag (50-60 million oz), with notable outputs of Au, Zn, Pb, Cu, and battery-grade MnO2. The district features Cordilleran polymetallic veins, some of which are along bedding in Mississippian and Devonian limestone, and others are steeply dipping quartz veins in silicate-rich sedimentary rocks and in the Philipsburg batholith. The veins exhibit a district-wide mineral zonation, marked by Cu- and Ag-rich ores near granite porphyries, with …

Aqueous Geochemistry Drives Microbial Cu, Fe, And Zn Uptake Rates In Yellowstone, A Continental Hydrothermal System, Eva Carolina Andrade-Barahona

Graduate Theses & Non-Theses

Microbial uptake of trace metal cofactors such as copper (Cu), iron (Fe), and zinc (Zn) is governed by biogeochemical processes in hydrothermal systems where metal bioavailability varies widely. In situ microbial metal uptake rates were quantified by applying metal stable isotope probing (MSIP) in the Yellowstone hydrothermal system across diverse geochemical conditions in hydrothermal springs. The findings in these studies revealed that pH exerts a dominant influence on microbial copper uptake rate, also enhanced by increased Cu²⁺ ion availability and dissolved oxygen. Microbial iron uptake, in contrast, displayed a broad tolerance to environmental variability, occurring across a pH range of …

Equity By Design: A North Glenn High School Equitable Practices Policy Guide, Kelli Andrews Jarrett

Theses and Dissertations

This capstone project addresses equity gaps in dual enrollment programs in Mississippi, with a focus on North Glenn High School, a pseudonym for a high-poverty rural school. While dual credit opportunities have expanded statewide, disparities remain for first-generation, low-income, and minority students. A significant barrier is Mississippi’s reliance on ACT benchmarks for eligibility, which disproportionately excludes marginalized groups. The study examines the potential of the Pre-ACT in grades 9 and 10 as an early diagnostic tool to identify readiness gaps and inform targeted interventions before students take the ACT. Grounded in Bronfenbrenner’s Ecological Systems Theory and the Dual Enrollment Equity …

Functional Impact Of Single Nucleotide Polymorphism Rs4129009 (Ile775val) On Human Toll-Like Receptor 10, Audrey N. Koti

Biology Student Research

Toll-like receptors (TLRs) are a subclass of pattern recognition receptors within the

innate immune system that detect pathogen-associated and danger-associated molecular patterns,

thereby initiating host defense responses. The human TLR family comprises ten receptors (TLR1

– TLR10), each recognizing structurally conserved microbial motifs such as bacterial

lipoproteins and viral nucleic acids. The ligand specificities, adaptor protein recruitment, and

downstream signaling cascades have been well-characterized for TLR1 – TLR9, which

predominantly engage MyD88- or TRIF-dependent pathways to activate pro-inflammatory

transcription factors including NF-κB. In contrast, the ligand specificity and intracellular

signaling mechanisms of TLR10 have yet to be fully elucidated. Emerging …

Fayetteville State University Winter Commencement December 12, 2025, Fayetteville State University

Graduation Exhibit

Program for Fayetteville State University Winter Commencement December 12, 2025

Keynote Speaker: Dr. Monica Terrell Leach, Provost and Senior Vice Chancellor for Academic Affairs, Fayetteville State University

Assessing Water Quality And Algae In Wetland Reserve Easements In The Alluvial Valleys Of Mississippi And Louisiana, Avery June Wissmueller

Theses and Dissertations

Wetlands in agricultural landscapes play a critical role in improving water quality by retaining and transforming nutrients and pollutants. In the Mississippi Alluvial Valley (MAV), widespread conversion of bottomland hardwood forests to row-crop agriculture has diminished this natural function. The Wetland Reserve Easement (WRE) program restores wetlands on marginal farmland to recover ecosystem services. In this study, I evaluated water quality and algal productivity in WREs compared to natural reference wetlands and crop sites. Restored wetlands showed improved water quality compared to crop sites and were often comparable to or intermediate between reference wetlands. Seasonal variation and hydrologic differences shaped …

Netflix And Kill: The Role Of True Crime Consumption In The Development Of Acquired Capability For Suicide, Chandler Jayne Mcdaniel

Theses and Dissertations

The Interpersonal-Psychological Theory of Suicide (IPTS) identifies acquired capability as a key factor contributing to suicidal behavior. Previous research has shown that violent media exposure can increase suicidal risk through desensitization, imitation, and trauma activation. However, little is known about the role of true crime consumption (TCC), a popular form of violent media engagement, in relation to IPTS constructs. This study examined whether TCC predicts acquired capability for suicide, perceived burdensomeness, and thwarted belongingness. A total of 215 participants were retained after data cleaning. Hypotheses predicted that higher TCC would be associated with higher acquired capability (H1), that TCC would …

Evaluating Avian And Aquatic Macroinvertebrate Communities In Wetland Reserve Easements In The Mississippi Alluvial Valley, Kara Michelle Hall

Theses and Dissertations

During the 19th and 20th centuries, nearly 80% of historic bottomland hardwood forests (BLHFs) in the Mississippi Alluvial Valley (MAV) was converted to cropland. Efforts to enhance and restore wetlands on marginal farmland have occurred since the early 1990s through the Wetland Reserve Easement (WRE) and other programs, yet few studies have evaluated ecological impacts of WREs. I conducted avian and aquatic macroinvertebrate surveys across WREs, croplands, and historic minimally disturbed wetlands to index abundance, richness, and diversity. I found WREs had less overall avian abundance, richness, and diversity than reference wetlands, whereas WREs exceeded crop sites in total richness …

Use Of Mid-Infrared Spectroscopy For Estimating Soil Chemical, Physical, And Hydrological Properties In Mississippi And Texas, Kanthake Yasas Bandara Gamagedara

Theses and Dissertations

Accurate and efficient estimation of soil properties is essential for advancing sustainable agriculture, water management, and soil survey applications. Traditional laboratory methods and pedotransfer functions (PTFs) are widely used but are often constrained by high costs, time requirements, and limited scalability. As an alternative, mid-infrared (MIR) and visible–near-infrared (vis–NIR) spectroscopy provide cost-effective, rapid, and non-destructive approaches for soil analysis. However, variability among spectrometer types, geographic regions, and soil scanning conditions poses challenges to model transferability and generalizability. This dissertation evaluated strategies to overcome these challenges and enhance the prediction of soil chemical, physical, and hydrological properties in Mississippi and Texas. …

Loneliness And Support For Political Violence Within The United States, Kellen Downey

Political Science Student Papers and Posters

Although loneliness is a growing public health issue in the United States, its political effects remain understudied. This paper seeks to understand the relationship between loneliness and the support of political violence by utilizing the Chapman Survey of American Fears (CSAF Wave 11). This survey, which is a component of the 2025 Chapman Survey of American Fears, includes the three-item UCLA Loneliness Scale, as well as two separate items specifically measuring political violence. Using a national survey (N=1,015), I address the following questions: (1) Are lonely individuals more likely to support violence on political grounds? (2) Does strongly identifying with …

Drinking Water Treatment Using Microbial Cellulose Membranes, Benjamin Schreiber

Graduate Theses & Non-Theses

Access to clean drinking water is a global concern. Existing water filtration technologies require high energy and chemical inputs. They generate a large volume of waste and are not always readily available. This limitation has given rise to the development of sustainable water filtration technologies. This study focused on developing a biodegradable Microbial Cellulose Membrane (MCM) made of bacterial cellulose that is capable of treating a wide variety of pollutants present in environmental water sources. To improve MCM properties for high flux and contaminants removal, they were pre-treated with NaOH (0.25 M). The effect of transmembrane pressure and membrane thickness …

Process Intensification For Rare Earth Elements Adsorption By Resonant Vibratory Mixing (Rvm), Mehran Saddat

Graduate Theses & Non-Theses

Rare earth elements (REE) are crucial to the advancement of modern technologies. REE applications include electronics, defense systems, wind turbines, catalysts, magnets, and aircraft. Bastnasite, monazite, and xenotime are the primary resources, while the secondary resources, including coal ash, E-waste, and acid mine drainage, are for REE extraction. The primary processing techniques are chemical leaching, ion exchange, chemical precipitation, pyrometallurgy, solvent exchange, biosorption, and adsorption. Adsorption technique is simple, cost-effective, and environmentally friendly, with higher efficiency but at the cost of a longer mixing time. Therefore, there is a pressing need for an optimized mixing technique to improve the adsorption …

Program Outcome Evaluation Of A Flexibly Structured Individual Outpatient Program For Severe Obsessive Compulsive Disorder In A Private Practice Setting, Jason R. David

Doctoral Dissertations

The current study is a quantitative program evaluation of the effectiveness private practice for treating obsessive compulsive disorder while incorporating multiple validated components to reduce common barriers of treatment access. There were three outcomes used to evaluate the first being the reduction in symptom severity across treatment, the second being the length of time in treatment before reduction can be seen, and the third being the rates completing treatment as agreed by therapist and participant. The current study was able to complete analysis for the first and third research question, and unable to answer the second. The first and primary …

Mental Health Literacy In Biology Graduate Teaching Assistants: Perception, Knowledge, And Training Needs In College Stem Education, Kanza Arshad, Ricardo Montoya, Nicole Scheuermann, Heather E. Bergan-Roller

Honors Capstones

College students experience a high prevalence of mental health challenges, and STEM students exhibit lower mental health literacy than students in other disciplines. Graduate Teaching Assistants (GTAs) play a crucial role in supporting undergraduate students, yet little is known about their mental health literacy (MHL) or how they navigate student disclosures in instructional settings. This preliminary study examines MHL among GTAs in biology, as well as their knowledge, perceptions, and training needs regarding MHL. We used semi-structured interviews and thematic analysis to examine how biology GTAs understand mental health, their responsibility related to student well-being, and what supports they identify …

Variation In Nectar Rewards Under Water Limitation Across Flowering Species, Madeline Isabelle Gregor

Undergraduate Honors Theses

Drought is becoming an increasingly dominant force shaping plant–pollinator interactions, yet we still know little about how nectar rewards respond to water limitation across species commonly used to support pollinators. We examined nectar volume and sucrose content in six flowering species relevant to California’s Mediterranean climate and quantified how drought alters these traits for four of those species. Under well-watered conditions, species differed in their nectar production, spanning more than two orders of magnitude. Perennial species such as Epilobium canum and Scrophularia californica produced the highest nectar volumes and sucrose amounts, suggesting that they contribute substantial carbohydrate resources when moisture …

Effects Of Beach Renourishment On Sea Turtle Nesting Success, Caydence Pennington

Honors Theses

Beach geomorphology has a profound influence on nesting animals, particularly sea turtles, whose reproductive success depends on suitable sand conditions and stable shorelines. In many densely populated coastal regions, beach renourishment projects are implemented to combat erosion and protect infrastructure, yet these alterations can also affect sea turtle nesting ecology. This study evaluated the effects of beach renourishment on loggerhead sea turtle (Caretta caretta) nesting activity on Longboat Key, Florida, from 2021-2024. Nesting activity, hatch success, and depredation patterns were compared between nourished and reference beach zones to determine whether nourishment had an impact on these events. Nesting …

Improvement Of Spot Spraying Treatments Using Precision Application Technologies, Steffen Telgmann

Theses and Dissertations

Chemical plant protection is widely adopted in agriculture and plays a crucial role in maximizing plant production. Several developments for site-specific applications have been implemented in chemical plant protection, driven by economic, social, and environmental considerations. Spot spraying technology, which utilizes single nozzles or a limited number of nozzles to treat specific areas, is now available and gaining market penetration. However, its performance depends on carefully optimized application parameters to ensure consistent coverage and efficacy, thereby mitigating both under- and overdosing. To address concerns including reduced efficacy, resistance evolution, and environmental impacts, this work researches the effects of nozzle selection …

The Diamond, December 12, 2025, Dordt University

Dordt Diamond

• Front Page: Dordt TPUSA Chapter Stuck in Approval Process; The Future of Christian Colleges in Light of Trinity's Closure; Hoyt Reinalda - A Life of Dedication and Improbability
• Feature: "Rivers in the Desert" - Dordt Student Releases Creation Care Podcast; The Dordt Barber Boom - Student Hair Cuts Surge; Dordt Places Second in Esteemed National Finance Competition; The Church and the Crescent - Understanding Islam; Student Visas - How Proposed Legislation May Affect International Students at Dordt; The Word Became Flesh - Music Department Presents "Historic" Choral Christmas Concert
• News: Celebrating the Retirement of Librarian Tricia Kok; …

Solving The Crisis Of Asthma/Copd Medication Nonadherence With New “Smart Inhalers”., Dalia Abdalla, Gregory Edward Suliga

Physician Assistant Capstones, 2020-current

Asthma and COPD are two common chronic respiratory diseases that have the potential to result in acute life-threatening exacerbations¹. These episodes cost America’s healthcare system several billions of dollars annually and can be largely prevented through proper medication adherence². Objective: Assess the effectiveness of smart inhaler usage and biofeedback interpretation with medication adherence and quality of Asthma and/or COPD control. Design: Systematic literature review. Methods: Searches were done in PubMed, Wiley Online Library, ScienceDirect Database, and DynaMed utilizing the terms smart inhaler, asthma/COPD management, biofeedback, inhalation technique, SABA, LABA, and LAMA. In PubMed, the following limits …

There’S Cardio And There’S Cardio: How Fitness And Sexual Attitudes Relate To Needs For Approval And Loneliness, Isaac Robertson

Honors College Theses

This study looked to collectively investigate the relationships of both fitness/sexual activity attitudes with a need for social approval, while also determining if biological sex could play a role in either of these relationships. Additionally, loneliness and mental well-being were examined with the aforementioned variables. Predominantly white (82.5%) females (75%) data were analyzed after completing an online survey (N = 40). Significant relationships were found between fitness attitudes and a need for social approval in women only (r (28) = -.50, p = .005) and between sexual activity attitudes and a need for social approval in men only (r (8) …

Bearing The How: Self-Compassion, Religiosity, And Basic Psychological Needs As Predictors Of Meaning In Life, Benjamin Wenndorf

Doctor of Psychology (PsyD)

While meaning in life (MIL) has been established as a significant contributor to psychologists’ understanding of wellbeing (Pollet & Schnell, 2017; Steger et al., 2008; Steger et al., 2011), some theorists believe MIL to be the fundamental human drive (Frankl, 1946/1962). Despite the significance that has been placed on MIL as a core component of human existence, little research has explored more than one variable at a time in relationship to MIL. Recent literature has explored self-determination theory’s (SDT) basic psychological needs microtheory as a predictive model for understanding MIL within a greater context of positive psychology (Martela et al., …

Jmu Libraries Magazine: Volume 3, Jenne M. Klotz, Emily D. Blake, Kristen S. Shuyler

Faculty Scholarship

Volume 3 of the biennial JMU Libraries magazine, highlighting services, events, awards of the JMU Libraries.

Effects Of Beach Morphology On Nesting Behavior And Success Of Loggerhead Sea Turtles (Caretta Caretta) In South Carolina, Reagan Rutkowski

Honors Theses

Loggerhead sea turtles (Caretta caretta) rely on sandy beach habitats for successful reproduction, yet nesting success is strongly influenced by physical beach features. This study examines the impact of beach morphology on nest survivorship across six nesting beaches in Horry and Georgetown counties, South Carolina. Three key hypotheses were tested: (1) nests placed at higher elevations exhibit greater survivorship, (2) nests located further from the recent high tide line experience higher survivorship, and (3) overall beach morphology influences nesting behavior and outcomes. Beach morphology variables—including elevation, slope, and nest-to-water distances—were measured at individual nest sites, while survivorship data …

Challenging Batson: Interest Convergence And Permanence Of Racism In Jury Selection, Addrain Conyers, Amanda Bergold, Antoinette Critelli

The Scholar: St. Mary's Law Review on Race and Social Justice

A Batson challenge is an objection to the use of peremptory challenges to dismiss potential jurors based on their race; however, Batson challenges are rarely successful. In this paper, we apply Critical Race Theory (CRT) as a framework to analyze the Batson Challenge. More specifically, we argue that the Batson challenge is a practice grounded in interest convergence that underscores the permanence of racism in the judicial system. We explore three interests of Batson: (1) the protection of the Sixth Amendment right to a fair trial; (2) the protection of the Fourteenth Amendment; and (3) the promotion of public trust …

Evaluating Feature Importance In Antarctic Soil Biota Models: An Exploratory And Modeling-Based Approach, Rachel E. Hunter

Undergraduate Honors Theses

The Antarctic McMurdo Dry Valleys are some of the harshest environments on our planet. They may not support higher fauna and vegetation, but the environment has a fairly diverse soil microbiome. The soil microbiome consists mainly of invertebrate nematodes (Plectus, Scottnema, and Eurydiolaimus), rotifers, and tardigrades. In this study, we examined ecological modeling approaches to enhance our understanding of the processes contributing to the overall population. In this process, two extensive data sets were used: the Biotic Effects Experiment (BEE) and the Elevational Transect (ET) data set compiled by the McMurdo Dry Valleys Long Term Ecological Research program were combined. …

Clinical Characteristics Of Graves’ Disease Following Covid-19 Infection Or Vaccination: A Multicenter Case-Control Study, Asena Gökçay Canpolat, Kemal Ağbaht, Ati̇lla Hali̇l Elhan, Mustafa Cesur, Zi̇ynet Alphan Uç, Seçki̇n Akçay, Hülya Iliksu Gözü, Mehmet Aşik, Hayri̇ Bostan, Beki̇r Ucan, Tugçe Şah Ünal, Merve Yilmaz, Ayşe Kubat Üzüm, Mehmet Çağri Ünal, Cuneyd Anil, Ümmü Mutlu, Nurcan İnce, Sevgül Faki, Güven Bari̇s Cansu, Mehmet Sercan Erturk, Ayten Oguz, Mustafa Aydemi̇r, Şefi̇ka Burçak Polat, Oya Topaloğlu, Reyhan Ersoy, Beki̇r Çakir, Ayşe Ok, Ersen Karakiliç, Muhi̇tti̇n Yalçin, Yusuf Kayhan, Kader Ugur, Di̇lek Yazici, Alper Gürlek, Tülay Omma, Emre Serdar Saygili, Adnan Batman, Banu Kara, Göknur Yorulmaz, Bahri Evren, Füsun Baloş Törüner, Bülent Okan Yildiz, Murat Erdogan Fai̇k, Faruk Alagol, Erman Çakal, Mustafa Şahi̇n

Turkish Journal of Medical Sciences

Background/aim: To describe Graves’ Disease (GD) associated with COVID-19 infection (COVID) or its vaccines (VAC) and to compare the clinical presentations, laboratory parameters, and short-term clinical course of the disease among different etiology groups (COVID, VAC, and GD control).

Materials and methods: Included in this multicenter matched case–control, retrospective cohort study were 239 patients with newly diagnosed (n = 196) or recurrent GD (n = 43) associated with COVID (n = 79) or VAC (n = 160). Each case was matched (1:1) with a control who had been diagnosed with GD prior to COVID.

Results: The median age of the …