Digital Commons Network^™

The Low-Temperature Heat Capacity And Thermodynamic Functions Of Mg3n2, Ca3n2, And Sr3n2, Natalie Parkinson

Undergraduate Honors Theses

Alkaline earth nitrides are highly hygroscopic materials used in metal refinement and various synthetic processes. In this work, the low-temperature heat capacities of Mg₃N₂, Ca₃N₂, and Sr₃N₂ were measured for the first time. The Ca₃N₂ sample contained impurities, necessitating corrections to the heat capacity data. The absolute entropies of Mg₃N₂, Ca₃N₂, and Sr₃N₂ at 298.15 K were determined to be 75.1, 114.9, and 188.5 J∙K⁻¹∙mol⁻¹, respectively. Gibbs energies of formation were …

Social Determinants Of Health And Caregiver Mental Health Screening In The Neontal Intensive Care Unit, Chloe Hicks Fisher

Master's Theses (2009 -)

Perinatal mental health conditions affect approximately one in five mothers and one in ten fathers in the United States, and caregivers of newborns admitted to the neonatal intensive care unit (NICU) are at an elevated risk for developing mental health conditions due to the significant stress associated with infant hospitalization. However, not all caregivers complete mental health screenings, raising concern that current protocols may be failing to reach a meaningful subset of this population. Social determinants of health (SDOH) are non-medical factors that influence health outcomes and are known risk factors for mental health conditions in perinatal populations. The present …

Developing A Framework To Improve Phishing Response After Detection, Kevin Umba

Master's Theses (2009 -)

Phishing belongs to the most prevalent attack vectors in the cybersecurity industry. Academia, industry, and government resources offer a wealth of information on the subject. However, insights on phishing techniques and remediations are scattered across those sources. Most governmental and academic literature focuses on user awareness, policy guidelines, or phishing training. This leaves the security practitioners underserved. Furthermore, actionable information for security operations is often unstructured or vendor-specific. The goal of the thesis is to provide a preliminary framework to guide security professionals through indicators of compromise and remediation, using a vendor-neutral approach.

Reliability And Validation Of A Game-Based Assessment Of Upper Limb Movement In Children With Unilateral Cerebral Palsy, Rachel Scheele

Master's Theses (2009 -)

Unilateral cerebral palsy (UCP) is a pediatric movement disorder characterized by motor impairment primarily affecting one side of the body. Clinical assessments of upper limb function are widely used but often lack precision and may be influenced by clinician subjectivity, thus creating a need for objective, reliable, and valid forms of assessment. Mobile health (mHealth) has shown promise in rehabilitation settings, due to its accessibility and user-friendly design. However, validity and reliability of these assessment tools remain largely unknown. MoEvGame was developed to evaluate upper limb motor function. This study evaluated the reliability and validity of MoEvGame in children age …

Applied Data Science Insights Into Grade Eight Math, Physics, And Ap® Physics Exam-Taking Influencing Act Stem Outcomes, Reema Banerjee

Dissertations (1934 -)

This study examined the longitudinal relationships among eighth grade mathematics proficiency, high school physics availability, AP® Physics exam participation, and ACT STEM scores across Wisconsin public school districts. A retrospective, multi-cohort design was used, and two cohorts were tracked from middle school through junior year. Publicly available datasets were analyzed using an applied data science approach in R, incorporating exploratory visualization, univariate and bivariate analyses, and multivariate regression modeling. Results indicated a positive association between eighth-grade mathematics proficiency and ACT STEM outcomes. AP® Physics exam participation emerged as a statistically significant independent predictor of ACT STEM scores after controlling for …

Moral Emotions Within The Habituation Of Virtue, Hannah Starr Grubbs-Oechsle

Dissertations (1934 -)

In this dissertation, I examine how moral emotions feature within the habituation of virtues. I suggest that their primary role within the moral life is epistemic: emotions grant agents perceptual access to evaluative properties in the world. I argue that their perceptual function within habit formation is normatively indispensable. I proceed through five methodological movements. I begin by presenting the three historical accounts of emotion I take as most influential on contemporary Western beliefs about emotion and as most dominant within the philosophy of emotion. To that end, I trace Stoic and Kantian accounts of emotion as representative of the …

Chimes: April 27, 2026, Calvin University

Chimes

Former CPI student exonerated, to attend Knollcrest campus in the fall by Ashley Hamons

Behind the budget cuts made for Dialogue and Chimes by Maya Oeverman

World Languages at Calvin: A look at the last 30 years by Mkenna Wilkinson & Ian Tjoelker

Faculty Senate approves changes to hiring, confessional standards, alignment with Synod by Ashley Hamons & Ian Tjoelker

Calvin cuts acrobatics & tumbling program by Alex DeYoung

Calvin department of visual and performing arts hosts annual Spring Arts Festival by Ava Roush

Foreign Language Experience Effects On L2-Accented Speech Attitudes In College Students, Jordan L. Ellington

Theses and Dissertations

The purpose of the study is to test whether knowledge of a second language in college students can affect perceptions and prejudices towards speakers with foreign accents. The testing was completed through both implicit and explicit attitudinal measures in regard to recorded audio stimuli. The explicit attitudinal testing was performed through participant self reporting of attitudes. Participants were presented with first (L1) or second (L2) language accented English samples and then rated that speaker in terms of various characteristics or traits that represented the speaker's solidarity and status. The implicit testing was performed in an Auditory Implicit Associations Test on …

Fast Hyperspectral And Super-Resolved Mapping Of Lipid Membrane Polarity With Single-Molecule Sensitivity, Elric Dion Pott, Meek Yang, James Ethan Batey, Jole Embree, Bin Dong

Chemistry & Biochemistry Faculty Publications and Presentations

Cell membranes display nanoscale heterogeneity in lipid composition and organization that regulates vital biological processes yet remain challenging to resolve with conventional imaging. We introduce spectral phasor single-molecule localization microscopy (SP-SMLM), a hyperspectral and super-resolution method that combines wavefront-like optical filtering with single-molecule imaging for simultaneous spatial and spectral analysis. A lab-built three-channel imager with sine/cosine filters encodes emission spectra of single molecules into the phasor space, enabling high-throughput, high-SNR mapping of membrane polarity at sub-50 nm spatial and 15 s temporal resolutions. Through simulation, we validate that the phasor angle correlates with the spectral mean for single dye molecules. …

Initiatives To Grow New Innovative Talent To Enable Fusion Energy, Peng Zhang, Ranganathan Parthasarathy, Yuqiao Fan, Arnold Lumsdaine, Rinkle Juneja, Yuchen Jiang, Monica Gehrig, Louise Ferris, David Donovan, Firas Akasheh, Olakunle Harrison, Joshua Schlegel, Manish Sharma, Mohammad Habibi, Mohan Rao, Rajni Chahal, Sean Walters, Vola Andrianarijaona

Achieve

The Initiatives to Grow New Innovate Talent to Enable Fusion Energy (IGNITE Fusion Energy) project was launched under the U.S. Department of Energy’s Reaching a New Energy Sciences Workforce (RENEW) program. This DOE RENEW-funded project is a multi‑institutional program that aims to build the future fusion workforce through mentoring, curriculum development, and innovation bootcamps. IGNITE brings together six academic institutions (Tennessee Tech University, Tennessee State University, Tuskegee University, Southern Adventist University, Missouri University of Science Technology, and University of Tennessee–Knoxville), Oak Ridge National Laboratory (ORNL) as a research and partnership hub, and 11+ private fusion companies for industry input and …

New Beginnings: A Well-Being Program For The New Graduate Nurse, Adriana Rumoro

Creating Healthy Work Environments (CHWE)

Graduate nurses are valuable to an organization because they bring a fresh outlook, enthusiasm, and dedication to providing excellent patient care. It marks a new beginning in their professional development. However, along with these new beginnings, they also face feelings of inadequacy, uncertainty, and workload pressure during the transition from student nurse to registered professional nurse (Asseiri et al., 2025). Transitioning into the workplace presents a variety of stressors for new graduate nurses, who experience both psychological well-being and distress during their first year of practice (Jarde, et al., 2021). Starting a new career can be the best of times, …

Your Workforce Sustainability Kit: Is Debriefing The Underutilized Tool For Safety And Well-Being?, Maggie Runyon, Tara Ryan Kosmas

Creating Healthy Work Environments (CHWE)

Purpose: To pilot a professional development offering providing a comprehensive debriefing model inclusive of quality, safety, and clinician well-being concerns. This is responsive to main gaps identified in recent systematic reviews exploring the evidence for debriefing to support emotional well-being of clinicians.

Theoretical Framework: Ajzen’s Theory of Planned Behavior guides this professional development and evaluation by examining behavioral beliefs, normative beliefs, and control beliefs.

Project: This program evaluation explored baseline gaps identified by 17 nurses who attended a comprehensive debriefing workshop in Maryland. Data was collected before the workshop to assess baseline exposure to debriefing behaviors and practice norms. The …

Reducing College Dropout Rates Of People With Autism In Hillsborough County, Florida, Jennifer Warren

Selected Social Change Portfolios in Prevention, Intervention, and Consultation

Goal Statement

Significant barriers exist for neurodivergent individuals when they try to access higher education and these barriers continue to disrupt their ability to persist and obtain a college degree or secondary professional education. By implementing targeted academic supports and increasing authentic inclusive education practices on campuses and in online education spaces, barriers can be reduced or eliminated. With clear actionable steps and intentional buy in from institutions, barriers present for teens and young adults with autism are removed and higher education.

Significant Findings

College students with autism spectrum disorder (ASD) are a growing population in higher education, but they …

Modified Anodic Stripping Voltammetry For In Situ Analysis Of Liquid Metal Composition In Molten Salt Electrorefining Systems, James H. Manner

Reviews, Analyses, and Instructional Studies in Electrochemistry (RAISE)

The development of in-situ analytical techniques for high-temperature molten salt systems is critical for advancing electrorefining in nuclear fuel recycling and metallurgical purification. This study proposes Modified Anodic Stripping Voltammetry (MASV), using a “dip-and-strip” approach where a tungsten electrode captures molten Sn–Ni alloy before stripping in LiCl–KCl–CaCl₂ at 415 °C. OCP results showed rapid loss of the metal layer due to poor wetting, and stripping peaks gave compositions inconsistent with the alloy, likely reflecting Sn/Sn²⁺ and Sn²⁺/Sn⁴⁺ redox processes. These results highlight interfacial limitations and the need for improved electrode materials and surface modification.

Handgrip Strength, Handgrip Endurance And Bmi: A Comprehensive Approach To Health Assessment Among The General Population Of Madikeri, Dr Asha S. Das, Dr Ravikiran Kisan, Dr Suhas Y. Shirur, Dr Narasimha Rai K, Dr Sanjay Bhagoji

Digital Journal of Clinical Medicine

Introduction: Being physically fit is essential for lowering the risk of illness and enhancing longevity. While Body Mass Index (BMI) is frequently used to evaluate body composition, Hand Grip Strength (HGS) and Hand Grip Endurance (HGE) are important indicators of general well-being. Goal: To assess BMI, HGS, and HGE and ascertain how they correlate in a selected group of subjects. Methods: Fifty participants between the ages of 20 and 40 years participated in a comparative cross-sectional study at the Department of Physiology, Kodagu Institute of Medical Sciences, Madikeri. Participants were divided into three BMI groups after anthropometric measurements were taken. …

A Machine Learning Framework For Ddos Attack Detection In Sdn-Enabled Mobile Wireless Networks, Ishita Sharma, Satyam Agarwai, Shashi Shekhar Jha, Sumit Chakravarty

Faculty Articles

Attacks on network components and devices pose a significant threat to service continuity, necessitating robust detection mechanisms. This paper presents a Distributed Denial of Service (DDoS) attack detection framework tailored for heterogeneous mobile wireless networks within a Software-Defined Networking architecture. A two-tier model is proposed: localized attack detection at access points (APs) using a Multi-Layer Perceptron (MLP) classifier, and centralized detection under mobility at the controller using a Long Short-Term Memory (LSTM) model. The system incorporates novel traffic features such as flow count, speed of source IP, source and destination IP address entropy, proportion of bidirectional flows, and handover frequency, …

Bound By Belief: Exploring The Influence Of Internalized Rape Myths On Survivor Agency And Identity, Arika I. White

Walden Dissertations and Doctoral Studies

This qualitative study explored how internalized RMA impacts survivors’ cognitive processing, coping strategies, and psychological agency, as observed by licensed psychotherapists who treat sexual assault survivors. Despite extensive literature on the societal impacts of RMA, less attention has been given to understanding how these cultural myths are internalized by survivors and manifest intrapsychically, influencing self-perception, self-blame, and identity reconstruction following trauma. Using a phenomenological approach, semi-structured interviews with therapists provided meta-level insights into how survivors’ narratives reflect internalized cultural stigma and misogynistic beliefs. Thematic analysis was used to identify patterns of maladaptive coping, internalized misogyny, and diminished agency, revealing how …

Coordinated Telehealth For People With Parkinson’S Disease: A Qualitative Comparison Of Providers’ And Patients’ Experiences, Erin J. Bush, Reshmi L. Singh, Josephine Cox, Merrill R. Landers, Annalisa V. Piccorelli

The Qualitative Report

Telehealth increases access to allied healthcare in rural areas. People with Parkinson’s disease (PD) need improved access to health care, and from a patient-centered perspective, the coordination of their healthcare should be a priority. Four speech-language pathologists, two physical therapists, two pharmacists, and two study coordinators provided a coordinated allied healthcare intervention for people with PD in rural Wyoming and Nevada. Both the providers of the intervention, as well as the participants who received it, were interviewed about their experiences with the eight-week intervention and asked about aspects that were successful or unsuccessful. Through a naturalistic paradigm using a qualitative …

Beyond Victimhood, Expanding Narratives: A Generative Inquiry With Trafficking Survivors, Giacomo Chiara, Celiane Camargo-Borges, Diego Romaioli, Alberta Contarello

The Qualitative Report

This study is a generative inquiry with survivors of trafficking from a social constructionist perspective. Inspired by the principles of Appreciative Inquiry, its focus is collaboration between researchers and trafficking survivors with a view to shaping and understanding their trafficking experiences together, expanding understanding of the topic and co-constructing a relational space in which counter-narratives on victimhood can be generated. It consisted of 10 interviews with women survivors of trafficking at the Italian Anti-Trafficking System. These women were from a range of nations and their experiences of exploitation varied. Taking a constructionist approach to research, we formulated an episodic-generative interview …

Testimonios De Una Estudiante De Doctorado: Regaining Joy In Graduate School Through Research-Practice Partnerships, Sophia Piral Lee

The Qualitative Report

Through an epistolary critical autoethnography and Latina and Chicana feminist framework, I explore the question of how international graduate students of color can overcome cultural, linguistic, ethnoracial, and social class isolation on predominantly white campuses and in college towns. By writing a letter to my mother (one of my methods for survival in academia), I share my challenges as a Guatemalan, first-time mom, first-generation college student, international student, and non-English native speaker in graduate school during and after the COVID-19 pandemic. At the same time, this writing helps me recognize how I overcame my isolation and regained my joy and …

Exploring Lay Meanings Of Happiness In Contemporary India: A Qualitative Inquiry, Kunmun Mishra, Kailash Bl Srivastava Professor

The Qualitative Report

Three decades of professional research suggest several explicit concepts of happiness; however, exploring the lay theories of happiness has largely been overlooked. Addressing this gap, our paper attempts to explore lay concepts of happiness in the contemporary Indian context. Given the inherently subjective nature of happiness, a qualitative study was conducted to explore the impact of beliefs and lived experiences on happiness. Data were collected through semi-structured in-depth interviews, and transcripts were analyzed using thematic analysis. Meanings, causes, and actions to maintain happiness evolved into seven significant themes: contentment, achievement and hope, collectivist orientation, autonomy, materialism, pragmatic orientation, and spirituality. …

Advancing Sustainability In The Indonesian Oil Field Services Landscape, Firmansyah Arifin, Sudarso Kaderi Wiryono, Sylviana Maya Damayanti, Gatot Yudoko

The Qualitative Report

This study examines sustainability practices in Indonesia's drilling and oil field services (OFS) industry, addressing a critical research gap from a business and management perspective. Using a qualitative case study approach, ten in-depth interviews with industry leaders identified key performance variables and developed a sustainability model specifically designed for the OFS drilling sector. The findings highlight three core dimensions: Internal Variables (e.g., Employee Health and Safety, CSR Initiatives, ESG Performance, Cost Savings, Energy Efficiency, Carbon Footprint Reduction), External Variables (e.g., Green Financing, Stakeholder Engagement, Community Welfare), and Performance. Novel contributions include operationalizing advanced HSE technologies like cyber rigs and tailored …

What Multiple Theories Can Illuminate In Qualitative Research, Sherry Marx, Rachel Billings, Taylor Dexter, Mark T. Lewis, Patrick Ocran, Douglas Weber

The Qualitative Report

Our aim in this paper is to help scholars better understand theory’s purpose in qualitative research, how it is employed in data analysis, and the strengths and limitations of the insights it can reveal. We do this by sharing our practice using multiple theories to make sense of a common data set in an advanced doctoral class focused on theory in qualitative research. For the class final project, students chose different theories to analyze one common data set: A brief historical article on the Los Angeles Zoot Suit Riots. Student-chosen theories included constructivism, actor-network theory, symbolic interactionism, critical race theory, …

Vacuum Modification Of The Surface Properties Of T15k6 Hard Alloy By Plasma–Chemical Synthesis Of Tin-Cu Coatings, Aleksandr Semenov, Dmitriy Tsyrenov, Nikolay Ulakhanov, Irina Semenova, Undrakh Mishigdorzhiyn, Wen Ma, Simon C. Tung, George E. Totten

Mechanical and Materials Engineering Faculty Publications and Presentations

The design and main parameters of a plasma–chemical reactor containing two compartments are presented. One compartment houses a vacuum-arc evaporator, while the other houses a planar magnetron. The compartments are separated by a diaphragm with a dosing slot for injecting copper vapor into the TiN synthesis compartment. The conditions for the synthesis of superhard TiN-Cu composite coatings are experimentally determined. Based on established process parameters for TiN synthesis in a nitrogen-containing plasma by Ti evaporation using a vacuum-arc discharge, it is proposed to apply TiN-Cu coatings by injecting Cu vapor into the TiN synthesis area and sputtering Cu using a …

Static And Dynamic Properties Of Dense Matter, Liam Brodie

Arts & Sciences Graduate Student Theses and Dissertations

Neutron stars and their mergers create environments of ultra-dense matter where the strong interaction governs the behavior, but where quantum chromodynamics, the theory of the strong interaction, cannot be solved exactly or perturbatively using current methods. Neutron stars are objects with more mass than our Sun, but with a diameter of about 25 km. Observations of neutron star macroscopic properties like their masses and radii, their surface temperatures, and the gravitational-wave and electromagnetic signals from their mergers allow us to use theoretical tools to infer the behavior of matter at a microscopic scale. In this thesis, we explore the static …

Development Of New Technical Approaches To Speed The Search For Axion Dark Matter With Haloscopes, Jonah Harper Hoffman

Arts & Sciences Graduate Student Theses and Dissertations

The axion is a hypothetical particle that may solve two major problems in physics: the strong CP problem in quantum chromodynamics (QCD) and the unknown particle nature of the dark matter. Axion haloscopes like the Axion Dark Matter eXperiment (ADMX) are capable of probing the region of parameter space where axions could constitute the dark matter. These experiments use a microwave resonant cavity in a strong magnetic field to convert axions into detectable photons when their Compton wavelength matches the resonant mode of the cavity. By moving a metal rod within the cavity volume, the resonant frequency can be tuned, …

Design For Future Discourse: Creating The Speculative Design-Inspired Exhibition Modulation: Rewiring The Self, Ryan Bridgforth

Honors College Theses

Humans have long combined speculation and design. Early examples like General Motors’ Futurama at the 1939 World’s Fair introduced Americans to the idea of expressways and invited them to imagine possible futures. While intriguing, this mix of design and future thinking stood to benefit corporations overall, which is where speculative design comes in. Pioneered by design duo Dunne & Raby, speculative design uses design not as a way to engineer solutions to difficult problems, but “as means to explore the cultural and technological potentials of design, effectively blurring material and conceptual boundaries” (Mitrović et al. 2021, 175). Designing objects or …

Evaluation Of Sirna-Mediated Knockdown Of Heat Shock Protein 16.2 In Adult Acropora Cervicornis, Edward P. Gniffke, Benjamin D. Young, Keir J. Macartney, Michael S. Studivan, Ian C. Enochs, Erin E. Easton

School of Earth, Environmental, & Marine Sciences Faculty Publications

Acropora cervicornis is a critically endangered Caribbean coral species facing a precipitous decline due to disease and thermal bleaching. To combat the loss of ecologically important reef-building corals, novel molecular approaches can be used to understand mechanisms of resilience and ultimately provide a means to modulate coral performance. In this study, we tested a recently developed method for gene knockdown in adult corals that utilizes short interfering RNAs (siRNAs) and the RNA interference pathway. The Heat Shock Protein 16.2 (HSP16.2) gene in fragments of adult A. cervicornis was targeted for knockdown using a single siRNA construct. RT-qPCR analysis of HSP16.2 …

Programmable Metal−Organic Complex Arrays With Precisely Controlled Metal Sequences As Tunable Multinuclear Scaffolds, Ahmed Alzamly, Sajid Ali

Faculty Scholarship

Metal−Organic Complex Arrays (MOCAs) offer a modular framework for creating multinuclear systems with precise control over metal ion identity and sequencing at the molecular scale. This structural accuracy allows researchers to investigate how specific metal arrangements dictate cooperative phenomena, such as catalytic efficiency, electronic interactions, and photophysical responses. Recent breakthroughs in synthetic strategies  including orthogonal protection and periodic metalation have enabled the fabrication of highly predictable heterometallic structures. This Review explores the fundamental principles of MOCAs’ sequence control, contemporary fabrication techniques, and the relationship between metal placement and emergent properties. Additionally, it examines applications of MOCA in catalysis, sensing, and …

X-Ray Polarization And Gamma-Ray Studies Of High-Frequency-Peaked Bl Lacertae Objects, Pazit Liviya Rabinowitz

Arts & Sciences Graduate Student Theses and Dissertations

High-frequency-peaked BL Lacertae blazars (HBLs) dominate the extragalactic sky at energies above 0.1 TeV, and have been extensively studied in TeV gamma-ray, X-ray, and many other energy bands. Despite this, many questions still remain about the properties of this class of sources and the mechanisms used to accelerate relativistic particles in their powerful jets. HBLs are often observed when their emission is known to be in a flaring state, which biases our understanding of their overall properties and duty cycles. The VERITAS observatory has recently concluded a long-term observing campaign of 36 X-ray-selected blazars to produce the first unbiased survey …