Digital Commons Network^™

Scanning Electron Microscopy As A Potential Tool For Distinguishing Charcoal From Dark, Oxidized, Biomass, João Vitor Dos Santos, Aleksandar I. Goranov, Lais Gomes Fregolente, Joao Marcos De Lima-Faria, Diego Stefani Teodoro Martinez, Patrick G. Hatcher

Chemistry & Biochemistry Faculty Publications

Condensed aromatic carbon (ConAC) is widely used as a proxy for organic materials derived from biomass burning. However, recent evidence shows that ConAC can be also formed through nonpyrogenic oxidative processes. This study presents a proof-of-concept investigation using scanning electron microscopy (SEM) to distinguish charcoal from dark, ConAC-rich materials produced by ambient oxidation of biomass. Pine wood exposed to long-term iron-mediated oxidation was compared with unaltered wood and a controlled laboratory-generated charcoal reference. Conventional geochemical analytical methods, including benzenepoly(carboxylic acid) (BPCA) analysis, Fourier transform–ion cyclotron resonance–mass spectrometry (FT-ICR-MS), solid-state 13C nuclear magnetic resonance (NMR) spectroscopy, and elemental analysis, confirmed substantial …

The Effect Of Occupational Roles, Burnout, And Efficacy On Job Satisfaction Among K-12 Teachers, Chloe Schwahn

Masters Theses

The aim of this study was to investigate variables that may impact the ratings of job satisfaction by practicing Illinois K-12 teachers specifically examining if the variables of occupational roles, burnout, efficacy, and other relevant covariates are correlated and/or have predictive utility on teacher job satisfaction. A secondary goal was to raise awareness about the stressors teachers face in their work environments. Survey materials included a demographics questionnaire, an occupational roles catalog, the Copenhagen Burnout Inventory, the Teacher Sense of Efficacy Scale, and the Teacher Job Satisfaction Scale. Seventy-six practicing Illinois K-12 teachers completed the study. Results of the current …

Implementing Gestures Into Vocabulary Instruction To Aid Recall And Retention, Emma Dilley

Masters Theses

This study highlighted the idea of incorporating gestures into vocabulary instruction to help the students recall and retain the new vocabulary words. The researcher predicted that with the incorporation of the strategy of gestures into instruction, kindergarten students will be able to retain more vocabulary words compared to vocabulary instruction that does not include gestures. A total of 22 students and one teacher from a rural town in central Illinois participated in the study. This study was a mixed methods study, which included quantitative data in the form of pretest and posttest and qualitative data in the form of a …

Crisis Communication Guidebook For Small And Medium-Sized Food Business: From Theory To Practice, Yixin Li

Masters Theses

This creative thesis aims to develop a practical crisis communication guidebook for small and medium-sized food businesses. Compared with larger businesses that have greater human and financial resources, small and medium-sized food businesses are often more vulnerable to the influences of crises on revenue and reputation. For this reason, they have a bigger need for practical and systematic crisis guidance. This project is grounded in crisis communication theory and analyzes existing literature in order to translate academic research and theoretical knowledge into an applied guidebook.

The guidebook is organized into three sections based on the timeline of crisis development: before …

Good Girl Bootcamp: Performative Femininity, Purity Culture, And Other Things Girls Are Taught, Kiersten Holland

Masters Theses

Performative femininity is a dangerous and controlling idea that subjugates women and places their inherent worth on how well they can conform to societal standards in male dominated spaces. Consequently, the reactionary messaging that surfaced as a result of these social pressures created a series of stereotypical female characterizations often depicted in the material and visual cultures of each period. By comparing contemporary literature with literature from the Victorian time period, it emphasizes the longstanding and controlling gender stereotypes pervasive throughout the past few centuries. This thesis attempts to understand and analyze the way that literature both critiques and supports …

Teachers' Perceptions And Professional Uses Of Artificial Intelligence In Education, Lexie Coartney

Masters Theses

This study explores Illinois teachers’ perceptions and professional uses of artificial intelligence (AI) in education. A mixed methods approach was implemented, including a survey completed by 137 Illinois teachers and four interviews. The research questions examined teachers' perceptions of AI, their professional use of AI, and their approach to students’ use of AI. Findings concluded that participants generally hold positive perceptions of AI, especially its time-saving abilities and being supportive, while also holding concerns including reliability, accuracy, and ethical issues. Results showed that 77% (n = 106) of teachers use AI tools mostly for lesson planning, creating assessments, differentiation, …

Trade-Offs In Avian Parental Care, Rebekah A. Mckinnon, Malgorzata Lagisz, Sheeraja Sridharan, David F. Westneat, Kimberley J. Mathot

Biology Faculty Publications

The selective forces shaping parental care have been studied for over 50 years. While theoretical and experimental work has yielded qualitative progress, the large body of empirical work testing predictions about parental investment based on life-history trade-offs has yet to be synthesized. We first provide an overview of the core life-history theory exploring how selection might shape parental care. We then conduct a systematic review and meta-analysis on studies that experimentally manipulated brood size in birds, a widely used experimental approach to manipulate parental investment. We extracted 313 estimates from 62 studies representing 31 species of birds from 19 different …

Independence Of Spectral Contrast Effects Across Different Frequency Regions In Speech Perception, Christian E. Stilp, Matthew B. Winn

Speech Pathology and Audiology Faculty Research and Publications

Identification of speech sounds is influenced by spectral contrast effects (SCEs), the perceptual magnification of spectral differences between successive sounds. SCEs result in the categorization of a target sound being biased away from spectral properties in the preceding acoustic context. Given remarkable consistency in the magnitudes of these contrast effects within the same frequency region, it was hypothesized that they would also show stable relationships across different frequency regions. In this study, normal-hearing listeners’ phoneme categorization and contrast effects were assessed where phonetic contrasts were driven by changes in low-frequency F₁ (“big”-“beg” continuum), mid-frequency F₃ (“dot”-“got”), or high-frequency …

Integrating Military-Acquired Iso Quality Management Principles Into Civilian Employment: A Phenomenological Study Of Post-9/11 Veterans, Paul Encinias

Dissertations

Purpose: This qualitative phenomenological study explored how post-9/11 U.S. military veterans describe their lived experiences of understanding and applying four ISO 9001:2015 Quality Management Principles (leadership, engagement of people, process approach, and evidence-based decision making) during the transition to civilian employment. This study further sought to understand how veterans articulated these competencies across employment stages and how those competencies were recognized within civilian organizations.

Methodology: This qualitative phenomenological study used semistructured interviews with 10 post-9/11 U.S. military veterans residing in the United States who had separated from active duty and were engaged in the transition to civilian employment. Participants were …

From Glass Ceilings To Balustrades: The Barriers And Supports In Gender-Balanced Corporate Boards Through The Lens Of Activity Theory, Erica Joy Thompson Dias

Dissertations

Purpose: The purpose of this qualitative study was to examine, through the lens of activity theory (AT), barriers individuals on public company boards of directors experienced in achieving or maintaining gender balance and supports that mitigated those barriers.

Methodology: Data were collected through semistructured interviews with 16 directors representing 13 gender-balanced public company boards. Data were coded using the AT framework, which conceptualizes human activity through interacting components including subject, object, rules, tools, community, and division of labor. In this study, barriers were tensions that obstructed progress toward gender balance, and supports were methods, resources, or actions that mitigated those …

Student Perceptions Of Academic Support Systems: A Sequential Mixed Methods Analysis Of Persistence, James Anderson

Dissertations

Purpose: The purpose of this sequential explanatory mixed-methods study was to assess the perceived influence of first-year institutional support services on student retention from the first to the second year at regional public universities in the Northeastern United States.

Methodology: A sequential explanatory mixed-methods design was used. In the quantitative phase, 437 retained second-year students completed the researcher-designed Retention Support Impact Survey to assess service utilization and perceived effectiveness. In the qualitative phase, 10 students participated in semi-structured interviews to provide deeper contextual insight into the numerical data.

Findings: The data indicated a disparity between service utilization rates and student-reported …

Exploring Exemplary Leadership: A Phenomenological Study Of Campus Presidents, Krysten Stone

Dissertations

Purpose: The purpose of this phenomenological study was to identify and describe the strategies used by exemplary campus presidents to build and lead resilient teams in for-profit vocational colleges, grounded in Kirkman and Stoverink’s (2023) team resources framework.

Methodology: This phenomenological study explored the lived experiences of 10 exemplary campus presidents serving in for-profit vocational colleges throughout California’s Central Valley. Purposeful sampling was used to identify participants who met the study’s criteria. Data were collected through semistructured, open-ended interviews and the analysis of four organizational artifacts including strategic plans, communication workflows, meeting structures, and leadership models. Data were systematically coded …

Elementary General Education Teachers' (Tk–1) Experiences Implementing Inclusive Practices For Students With Disabilities, Emily Ruth Engelson

Dissertations

Purpose: The purpose of this qualitative multi-case study was to examine the challenges elementary general education teachers (TK–6) face, including confidence and skills, when working to successfully include students with disabilities in their classrooms. The study also sought to identify the most valuable professional development experiences, the role of grade-level collaboration in building teachers' capacity, and the administrative support and resources that contribute to teachers' success in including students with disabilities.

Methodology: This qualitative multi-case study employed semi-structured interviews with six TK–first grade general education teachers in Orange County, California, each with at least one year of experience including a …

Walking On A Tightrope: Women And Managers Navigating Maternity Leave And Return-To-Work, Rachel R. Kalvert

Dissertations

Purpose: This qualitative phenomenological study explored how professional women experience maternity leave and return-to-work, focusing on how managerial communication shapes perceptions of career, competence, belonging, and career progression. The study involved professional women who returned to the same organization full-time from 6 months to 3 years after maternity leave.Methodology: Fourteen professional women were recruited via snowball sampling and listservs. Data were collected through Zoom interviews. Participants completed a demographic questionnaire and received interview questions in advance. The interview guide aligned with the study's three questions. After the interview, participants reviewed AI-generated transcript summaries for accuracy; and participants were given a …

Teachers’ Perceptions Of Principals’ Transformational Leadership And Its Impact On Job Satisfaction In Rural California, Pesach Walter

Dissertations

Purpose: This phenomenological study explored how early-career teachers in rural California public schools perceive their principals’ transformational leadership behaviors and how those perceptions influence job satisfaction, retention, and leadership effectiveness.

Methodology: A qualitative phenomenological design examined the lived experiences of early-career teachers in rural California K–12 public schools. Five participants with three to five years of experience were selected by purposive sampling; rurality was defined by National Center for Education Statistics locale codes 41, 42, and 43. Data were gathered through semi-structured, 60-minute Zoom interviews guided by a researcher-developed protocol based on Bass’s Four I’s framework. Transcripts were coded in …

An Explanatory Mixed-Methods Study Identifying And Describing The Perceived Impact Of Five Disruptive Career Skills On Women’S Career Advancement To An Executive Leadership, Roque Ramirez

Dissertations

Purpose: The purpose of this explanatory mixed-methods study was to identify and describe the perceived impact of Johnson and Mohr’s (2019) five disruptive career skills on the career advancement of female chief petty officers with a military background as they progressed into a leadership position.Methodology: This explanatory mixed-methods study examined the experienced of eight female chief petty officers regarding the use of personal disruption strategies. Participants were selected through purposive sampling based on predetermined eligibility criteria and recommendations. Data were collected and analyzed by calculating means scores for quantitative responses and identifying qualitative themes related to the five personal disruption …

Practices Alternative Education Principals Use To Create An Infinite Mindset In Their Schools To Inspire Extraordinary Results, Renee Gates

Dissertations

Purpose: The purpose of this phenomenological study was to explore and describe how exemplary alternative education principals perceive the practices of Simon Sinek’s Infinite Mindset Framework are embedded within their organizations to inspire the achievement of extraordinary results. A further purpose of this study was to understand the organizational supports and barriers these exemplary leaders perceive affect the development of an infinite mindset.

Methodology: Interviews were used to explore and describe how exemplary alternative high school principals perceive the five practices of Sinek’s Infinite Mindset are embedded within their organizations. The study is intended to contribute to and extend current …

Precision Metagenomics Reveals Microbial Landscape In Acute Upper Respiratory Infections: A Comprehensive Dataset, Sadia Almas, Rob E. Carpenter, Vaibhav K. Tamrakar, Anuradha Singh, Aditya Sharma, Rahul Sharma

Human Resource Development Faculty Publications and Presentations

Objectives The comprehension of the microbial composition in upper respiratory tract infections is pivotal for the progression of diagnostic and treatment methodologies. This article presents a dataset derived from Precision Metagenomic next-generation sequencing using hybridization capture-based targeted sequencing. Nasopharyngeal samples from 24 patients with acute URIs were analyzed using the Illumina®/IDbyDNA Respiratory Pathogen ID/ AMR panel. The dataset contains a wealth of information on the composition of the microbiota, including the relative abundance of known pathogens and their potential clinical significance. Data description This dataset serves as a valuable asset for future research in respiratory medicine, infectious disease epidemiology, antimicrobial …

Left Atrial Myxoma: A Case Study, Hannah Phan

Bachelor of Science in Diagnostic Ultrasound Projects

This case study describes a 50 year old female who presented to the hospital with dyspnea, worsening shortness of breath, when lying supine, and exercise intolerance for several weeks. A transthoracic echocardiogram (TTE) revealed a large left atrial mass attached to both mitral valve leaflets, suggestive of a myxoma. A transesophageal echocardiogram (TEE) was performed the following day, confirming the presence of the mass and measuring approximately 3.8 × 3.18 cm. The myxoma appeared mobile and prolapsed towards the mitral valve during diastole, resulting in functional mitral stenosis. Left atrial myxomas are the most common primary cardiac tumors and can …

Tetralogy Of Fallot With Pulmonary Atresia And Major Aortopulmonary Collateral Arteries: A Case Report, Evelia Nakapaahu

Bachelor of Science in Diagnostic Ultrasound Projects

This case study describes a six-month old female with 22q11.2 deletion (DiGeorge Syndrome) presenting with low oxygen levels, pre diagnosed of a complex congenital pathology of Tetralogy of Fallot (TOF)/Pulmonary Atresia (PA)/Major Aortopulmonary Collateral Arteries (MAPCAS) in fetal echocardiogram and is scheduled for surgical repair. The transthoracic echocardiogram showed a ventricular septal defect, aortic override, right ventricular hypertrophy, hypoplastic branch pulmonary arteries with confluence, and flow from major aortopulmonary arteries. First, the patient went into catheterization for assessment of the patient’s hemodynamics and pulmonary vessels, which results showed no hemodynamic instability or arrythmias. Weeks later, surgery was performed resulting in …

Echocardiography Evaluation Of Aortic Dissection: A Case Study, Alyssa Garvey

Bachelor of Science in Diagnostic Ultrasound Projects

Aortic dissection is a deadly condition where the layers of the aorta tear apart, often causing sharp pain and a lack of blood flow to vital organs. A 55-year-old male presented with worsening shortness of breath, dyspnea on exertion, and peripheral edema. A transthoracic echocardiogram and computed tomography angiogram were performed and uncovered an ascending aortic aneurysm and a combined Stanford A and B aortic dissection. The patient was rushed into emergency surgery where a Bio-Bentall Procedure was performed. Due to lack of insurance, the patient put off receiving medical aid causing his condition to progress for the worse. Improved …

Student Scholars: Access-To-Justice Research In The Law School Direct Representation Clinic, Claire Johnson Raba

UIC Law Open Access Faculty Scholarship

No abstract provided.

Ebola In The Drc: A Different Problem Compounded By Violence, David Brett-Major

Journal Articles: Epidemiology

A Public Health Emergency of International Concern (PHEIC) has been declared in the Democratic Republic of Congo (DRC) due to Ebola disease from Bundibugyo virus. Non-health-focused factors should be fundamental to how DRC and its partners respond to and recover from the current emergency. Filovirus emergencies are violent in every sense-the disease experience of patients and their caregivers, the tumult in impacted communities, sometimes the physical manifestations of frustration against healthcare services, the fits and starts of concerted response, and the milieu of conflict in which this emergency occurred. Yet, interpersonal and organized violence may contribute to frequency of health …

Town Of Hill, N.H., Incorporated As New Chester, 1753, Annual Reports 2025, Hill Town Representatives

Hill, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Economic Exchange And Relational Work In Doubled-Up Households, Hope Harvey

Sociology Faculty Publications

Doubling up, or sharing a home, is an increasingly common way that families make ends meet. Drawing on over 170 in-depth interviews with 60 parents, I ask how doubled-up household members understand and contest their economic relationships. I show that the success of intra-household economic exchange depends not only on the amounts exchanged, but also the shared meanings behind these exchanges. Given the lack of institutionalized expectations guiding doubled-up household relationships, household members draw on competing norms, framing the household as either a solidarity unit or a series of independent nuclear family units. Although disagreement over economic relationships is common, …

Perceived Adolescent Insecure Attachment With Mothers And Fathers, Helena Pipová, Martin Dolejš, Jaroslava Suchá, Alexander T. Vazsonyi

Sociology Faculty Publications

The aim of this study was to test relationships between adolescent insecure attachment (anxious and avoidant) with mothers and fathers and three outcomes: food addiction, eating disorders, and weight status, in a large multi-regional sample of Czech adolescents. Anonymous, self-reported data were collected from 3,677 adolescents (1,688 boys, 45.9% and 1,989 girls, 54.1%). Both anxious and avoidant attachment with mothers were positively associated with food addiction (p <.001) and eating-disorder risk (p <.001). Importantly, avoidant attachment with fathers uniquely and additively explained variance in both food addiction (p <.001) and eating-disorder risk (p =.003), after controlling for maternal attachment. Weight status was unrelated to attachment and was predicted by sex and parental education only. Study findings highlight the salience of insecure attachment with both mothers and fathers for food addiction and eating disorders among adolescents and identify the parental relationship as a key potential preventative strategy.

“Policymakers Need To See This!”, Ramona G. Olvera, Peter Balvanz, Owusua Yamoah, Kesla Klingler, Marisa D. Booty, Sylvia A. Ellison, Amy Farmer, Amy K. Kuntz, Hilary L. Surratt, Carrie B. Oser, Margaret L. Mcgladrey

Sociology Faculty Publications

The use of Photovoice methods to identify and address public health challenges has evolved since this participatory action research method’s inception in the 1990s. However, there is a notable lack of research on the dissemination of Photovoice findings to promote community action and change. This study evaluates audience and Photovoice participants’ experiences of dissemination events presenting the results of 21 Photovoice projects that supplemented the HEALing Communities Study (HCS), a multistate community-based study of strategies to reduce opioid overdose deaths. The Photovoice projects captured the perspectives of people with lived experience of substance use disorder and front-line providers regarding their …

Regulatory History And Judicial Review, Todd Phillips, Anthony L. Moffa

Faculty Publications

The Administrative Procedure Act requires federal agencies to simply "incorporate in the rules adopted a concise general statement of their basis and purpose" after they receive comments from the public, and the Supreme Court ruled in Overton Park that courts are to adjudicate whether rules are arbitrary and capricious based on agencies' contemporaneous rationales. Judge-created doctrines incentivize agencies to rely on these "concise" statements to elucidate their rationales, and as a result, rulemaking preambles have ballooned in size as agencies seek to insulate themselves from critical courts.

This article contends that although the APA's statutory requirement is in tension with …

Understanding Resilience In Children In Out-Of-Home Care: Using Person-Centered Health Services Research, Hyeeun K. Shin

Theses and Dissertations--Health Services Research (HSR)

Adverse childhood experiences (ACEs), which refer to exposure to traumatic life events before age 18, and instability in caregiving experiences contribute to poor physical, mental, behavioral, and developmental health outcomes for both children and adults. Previous research shows that these experiences can have negative effects both in the short term and throughout a person’s life. However, children’s strengths, which are the internal and external assets that support their development, can help protect against the impact of ACEs. Effective parenting, positive social support, and self-regulation skills are essential factors that build resilience, helping individuals adapt to challenges that may affect their …

Suicide Stigma In A Cross-Cultural Context: Comparison Between Mexican And Mexican American Communities., Robin E. Gearing, Micki Washburn, Kathryne Brewer, Luis R. Torres-Hostos, Pedro Isnardo De La Cruz, Miao Yu, Natalia Giraldo-Santiago, Alberto Cabrera, Adelaido Garcia Andres

School of Social Work Faculty Publications

Suicide and suicide-related stigma are serious public health issues affecting Latine communities and often serve as a barrier to help-seeking Mexicans and Mexican Americans experiencing mental health concerns. Despite this, there are still gaps in our understanding of how suicide stigma specifically impacts Latines of Mexican heritage. While Mexicans and Mexican Americans share many familial, cultural, and religious values, their exposure to different societal norms may shape distinct perceptions of suicidal ideation and mental health. To better understand suicide-related stigma in these communities, we conducted a community-based survey with 248 Mexican Americans in Houston and 203 participants in Mexico City …