Digital Commons Network^™

Advancing Clean Mobility: Hydrogen Fuel Cell Electric Bus Workforce Development For Transit Agencies, Manideep Tummalapudi, Shantanu Kumar, Jaskaran Singh

Mineta Transportation Institute

Hydrogen fuel cell electric buses (FCEBs) are rapidly transforming public transportation in the United States. However, while transit agencies are investing heavily in new zero-emission vehicles and fueling infrastructure, far less attention has been paid to the workforce needed to operate and maintain them. As agencies accelerate toward ambitious climate and fleet transition goals, they are also confronting a critical challenge: preparing workers for an entirely new set of technologies, safety requirements, and operational demands. This study addresses that gap by systematically identifying the knowledge, skills, and abilities (KSAs) required for FCEB vehicle operators and maintenance technicians, assessing current training …

Statistical Model Of Subsurface Scattering Bias In Icesat‐2'S Atl06 Product, Thilini Bamunu Arachchige, Kelly E. Gleason, Jonathan C. Ryan, Markus Allgaier

Environmental Science and Management Faculty Publications and Presentations

ICESat‐2 uses visible laser pulses and photon‐counting detectors to range the Earth's surface, providing precision altimetry for measuring ice sheet elevation change. However, since water ice is transparent to visible light, the photon returns recorded by ICESat‐2's ATLAS instrument may originate from subsurface scattering inside the snow or glacier ice volume, making the surface appear lower than it is. Here, we develop a Monte Carlo Radiative Transfer model to characterize the potential bias caused by subsurface scattering in snow and ice. Our model allows us to study the subsurface scattering bias in relation to photon number, scattering coefficient, and slope …

The Mundlak Estimator In A Panel Data Model With Serially Correlated Error Component Disturbances, Badi H. Baltagi, Long Liu

Center for Policy Research

This paper shows that the classic Mundlak (1978) result where the random effects estimator reduces to the fixed effects estimator when the regressors are all correlated with the individual effects, may not hold if the remainder disturbances have a general serial correlation variance-covariance matrix. This includes the popular AR(1), MA(1) and ARMA(p, q) processes for serial correlation. This is illustrated with an empirical example for the AR(1) case.

Beyond Extremism: Rethinking Anarchism In Contemporary Indonesian Security Discourse Through Anarchist Criminology, I Gusti Ngurah Aditia Tjandra Asmara

Jurnal Kriminologi Indonesia

This article examines how contemporary Indonesian security discourse increasingly frames anarchism through the categories of radicalism, extremism, and national security threats. Responding to the emergence of academic and security-oriented narratives that position anarchism as a form of anti-state extremism, this article asks how anarchism is represented and securitized within contemporary Indonesian criminological and security discourse. Using a qualitative critical-discourse analysis approach, this article draws upon perspectives from Anarchist Criminology and Cultural Criminology to examine the construction of anarchism within contemporary Indonesian security narratives. The findings demonstrate that anarchism is frequently reduced into a simplified and homogeneous category of extremism through …

Nasa’S Ecostress Satellite Reveals Widespread Midday Depression In Ecosystem Evapotranspiration, Jingyi Bu, Jingfeng Xiao, Joshua B. Fisher, Yiqi Luo

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Plants often exhibit a midday depression in water use (i.e., transpiration), reflecting a constraint on their ability to sustain maximum water transport, which may occur at the cost of reduced photosynthesis. Eddy covariance observations and geostationary satellites cannot quantify this widespread phenomenon globally while resolving fine-scale spatial variability. Using evapotranspiration measurements from the ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) and machine learning, we quantify the global distribution of midday depression in evapotranspiration. Midday depression primarily occurs during peak-growing seasons in temperate zones and dry periods in the tropics, with a morning shift of the peak evapotranspiration time …

Grounding Dependency Within Case Study Of Tourism In Cuba, Abby Mccarroll

Sociology Honors Projects

The research investigates the tourism industry in Cuba as a case study for dependency theory as articulated by Milton Santos’s Toward an Other Globalization. The research examines interactions between tourists and locals, and how Cubans navigate the contradictions of a socialist project embedded in a capitalist economy. Through an analytical macrosociological lens, the research contributes to wider considerations of dependency, economic sovereignty, and the uneven impacts of globalization. I argue that the case study of tourism in Cuba expands Santos’ theories to demonstrate how a country that refutes neoliberal ideology still finds itself trapped within the dynamic of dependency.

Covid-19, Politicization, And Vaccine Hesitancy: A Spatiotemporal Analysis Of Non-Medical Exemptions In Minnesota, 2014-2024, Benjamin Arnold

Geography Honors Projects

Vaccination rates have declined due to the growing hesitancy by many parents to vaccinate their children, signified by an increasing amount of non-medical exemptions. While there has been previous spatial analysis of exemption patterns as a threat to herd immunity, there has not been much post-COVID. This analysis provides a modern analysis of changing exemption clustering in Minnesota, while also considering the impact of public health being increasingly politicized. We used kindergarten vaccination data for 1475 elementary schools to analyze the evolution of clustering and predictors of NMEs across space and time in Minnesota, from 2014 to 2024.

Supporting The Humans In Human Services: Understanding The Impacts Of Indirect Trauma Exposures & Promoting Resilience To Bolster Professional Wellbeing And Strengthen Service Provision, Mandy Jr O'Malley

Master of Arts in Human Services

The on-going exposure to the trauma of others that is regularly experienced in the daily work of human service professionals carries with it risks to the wellbeing of the individual professional, the health of the organization in which they work and to the quality of care that they are providing. The scope of the effects that are experienced both acutely and over time include, among others, mental and physical exhaustion, mental health symptoms that mirror those of Post Traumatic Stress Disorder in those directly impacted by trauma, changes in worldview, and dramatic reductions in empathy. By understanding the consequences of …

Leadership Practices And Their Influence On Employee Retention And Productivity In Group Homes, Tolif Bekele Gemechu

Walden Dissertations and Doctoral Studies

Employee retention and workforce productivity have consistently challenged residential group homes serving adults with intellectual and developmental disabilities, reducing continuity of care, increasing costs, and limiting organizational effectiveness. This qualitative case study explored how leadership practices influenced employee retention, workforce productivity, and alignment with the Baldrige Excellence Framework. The study was guided by three research questions addressing leadership practices, employee engagement and retention, workforce productivity, and organizational alignment. Data were collected through semi-structured interviews with 12 DSPs and leaders and analysis of organizational documents, workforce records, policies, and procedures. Thematic analysis using NVivo software was conducted, with trustworthiness established through …

Predictive Validity Of Basc-3 Anxiety And Working Memory Scores For Clinically Significant Test Anxiety: Including Case-Level Examination Of Misclassified Profiles, Des'tiana Williams, Luis E. Aguerrevere, Nina Harness

Archives of Assessment Psychology

High school and college students can struggle with test anxiety, which may result in test scores below the capacity of the student. Previous literature suggests that test anxiety is related to general anxiety and limited working memory (WM), yet the extent to which these factors predict test anxiety in commonly used clinical psychoeducational assessments has not been thoroughly examined. In this study, we examined how well scores on the Behavior Assessment System for Children- 3rd edition (BASC-3) Self-Report Anxiety scale and Working Memory Index (WMI) on the Wechsler Adult Intelligence Scale – Fourth Edition (WAIS-IV), Wechsler Intelligence Scale for Children …

Speaking In Color: Code-Meshing Against Standard Language Ideology In The Public Speaking Classroom, Darrion A. Walker

Journal of Communication Pedagogy

Public speaking courses do more than teach presentation skills; they also teach students which voices count as credible. In Predominantly White Institutions (PWIs), instructional norms tied to standard language ideology position standardized English as the unmarked benchmark of professional communication. For students who speak African American Language (AAL) or other culturally informed language varieties, this creates a double bind: conform linguistically or risk being penalized for rhetorical authenticity. This reflective essay identifies the double bind as an underexamined problem in communication pedagogy and suggests that code-meshing—the intentional blending of multiple language varieties within a single communicative act—offers a more equitable, …

Decolonizing Communication Pedagogy: Toward An Afro-Rhetorical Framework, Lionnell Smith

Journal of Communication Pedagogy

This essay introduces Afro-rhetorical pedagogy as a decolonial framework for communication pedagogy. Building on Adam Key’s 2022 call for an Applied Africana Studies framework for public speaking pedagogy, this essay conceptualizes Afro-rhetorical pedagogy grounded in Afrocentric thought and African communication theory. Through a close reading of Molefi Kete Asante’s 2011 address on African curriculum, this essay establishes three foundational principles for Afro-rhetorical pedagogy: (a) epistemological agency, (b) decolonized knowledge production, and (c) institutional reconstruction. This pedagogical framework addresses communication education’s reproduction of white cultural hegemony by promoting African-centered principles, practices, and precepts that reposition communication pedagogy as a more liberatory …

Meeting Rhetorical And Relational Goals In Online Higher Education: Insights From A South African Case Study, Rentia Du Plessis, Diana Breshears, Luzelle Naudé Prof

Journal of Communication Pedagogy

This qualitative study examines the degree to which synchronous and asynchronous online learning platforms both supported and constrained the achievement of rhetorical and relational goals in a resource-constrained South African higher education context. As online teaching practices persist in the post-COVID era, understanding how to design pedagogically sound online environments is increasingly important, particularly in the Global South where cost, access, and connectivity pose significant constraints. Drawing on the Rhetorical and Relational Goals Theory (RRGT; Mottet et al., 2006) and Kaufmann et al.’s (2016) online learning climate dimensions, the study analyzes undergraduate students’ perceptions of Blackboard Collaborate, PowerPoint voice-overs, WhatsApp, …

Adolescent Depressive Symptoms And Adult Functioning Within Major U.S. Racial Groups, Summer N. A. Millwood

Electronic Theses and Dissertations

Depression is the leading cause of disability among adults in the U.S and is associated with negative short- and long-term social, emotional, economic, and physical health outcomes. Notably, rates of depression among children and adolescents are rapidly increasing across the globe. Depression in youth disrupts crucial developmental processes that can adversely affect concurrent and longitudinal socioeconomic and health outcomes. Although extant research delineates the consequences of adolescent depression for adult functioning (e.g., lower educational attainment, fewer economic resources, worse physical health), studies that examine these associations within racially minoritized populations are scarce. This gap in the literature is especially striking …

The Development And Validation Of Gains-Id, A Guidebook For Adapting Intervention Sessions For Students With Intellectual Disability, Kayla Mccreadie

Electronic Theses and Dissertations

Targeted interventions can equip students with intellectual disabilities (ID) with essential academic skills that support positive post-secondary outcomes. However, the lack of interventions specifically designed for this population creates barriers to equitable education. Until more interventions are developed, educators may benefit from resources that help adapt evidence-based practices to meet the needs of students with IDD.

The first manuscript introduces GAINS-ID (Guide for Adapting INtervention Sessions for Intellectual Disabilities). Based on best practices and Universal Design for Learning (UDL), the guide offers examples of adaptations to various intervention components—such as time, materials, environment, …

Biases Toward Threat In Categorization And Attention Allocation When Evaluating Static And Dynamic Emotional Crowds, Delaney Mcdonagh

Electronic Theses and Dissertations

Visual representations are often biased, and these biases can manifest across many different stages of perception. For example, when categorizing nuanced, ambiguous, or fleeting emotional expressions, most perceivers are biased to interpret expressions as negative. Biases also manifest at the level of attention-allocation as observers dynamically examine and attend to expressions as they visually navigate a crowd. To comprehensively understand biased emotion perception, it remains critical to understand how bias manifests across the process of making emotional judgements, both as observers gather information about faces over time and as they make a final categorization of what they see. Biased patterns …

The Question As Discipline: A Journey Toward Advanced Integrated Practice, Claire Boonmanop Webb

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

Behind Prison Walls: Unmasking The Victimization Experience Of A Transgender Inmate: A Narrative Study, Kevin E. Hemminger

Electronic Theses and Dissertations

Transgender individuals experience disproportionately high rates of victimization within the U.S. criminal justice system, at rates some studies estimate as four times greater than those of cisgender individuals (Marchi et al., 2025). Victimization may occur at the hands of correctional officers, institutional staff, or fellow inmates. This narrative study focuses on the life story of a formerly incarcerated transgender woman, tracing her experiences before incarceration, throughout her time at two different correctional facilities in two different states, and her life following release. While Community Based Research (CBR) was not adopted as a formal methodological framework, its principles — centering lived …

Growth In Discomfort, Kayla Marker

Graduate Student Portfolios, Professional Papers, and Capstone Projects

This portfolio captures the transformation into an advanced social work practitioner, emphasizing self-reflection, social justice, and the integration of theory into practice. Through personal narrative and practical examples, the document demonstrates growth in ethical behavior, advocacy for marginalized groups, trauma-informed care, and cultural humility, particularly in rural and Indigenous contexts. This portfolio details the application of systems, social learning, and empowerment theories, and highlights the importance of bridging micro and macro practice, engaging in research and policy analysis, and assuming leadership roles. The work showcases adaptability, collaboration, and evidence-based approaches, culminating in a commitment to lifelong learning and justice-oriented leadership …

Examining Intimate Partner Violence After Pediatric Traumatic Brain Injury, Rebecca R. Suzuki

Electronic Theses and Dissertations

Pediatric traumatic brain injury (TBI) is linked with social problems in peer relationships that can last into adulthood. Little is known about how social problems impact the development of intimate relationships as pediatric TBI survivors grow up. This study addressed this gap by examining risk of intimate partner violence (IPV) in a sample of 50 young adult survivors of pediatric TBI prior to age 13 (M age = 22.96, SD = 1.70, 60% women) and tested social information processing (SIP) as a potential process through which TBI influences risk for IPV. Participants were recruited via Prolific and social media …

Initial Pilot Test Of A Single-Session Social Support Program For Increasing Social Approach Behavior And Social Support In Emerging Adults, Emily L. Jones

Electronic Theses and Dissertations

Emerging adulthood, the developmental stage between adolescence and young adulthood (Arnett, 2000), is marked by increases in autonomy, changes in social dynamics, and identity exploration (Arnett, 2015). During this stage, social stressors may trigger or exacerbate preexisting mental health problems (Slavich & Auerbach, 2018), though few emerging adults seek or receive mental health support (Zhao et al., 2025). Single-session interventions, or “specific, structured programs that intentionally involve just one visit or encounter” (Schleider et al., 2019), may present an opportunity to provide some support to those who face barriers to participation in traditional forms of treatment (Janota et al., 2022). …

Promoting Developmentally Informed Justice: A Developmental Assessment Referral Framework For Juvenile Transfer Decisions, Carly F. Colman

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

The transfer of youth between juvenile courts and adult courts is one of the most consequential decisions made in the American legal system, as it will influence the youth’s legal outcomes, developmental trajectories, and long-term well-being. Advances in adolescent brain science show that there are many factors associated with youthful offending, including developmental immaturity, susceptibility to external influences, and ongoing neurobiological development—all of which are related to age, rather than being fixed criminal traits. Despite this growing body of evidence, legal decision-making in juvenile transfer and sentencing does not consistently incorporate individualized developmental data. This paper examines the important role …

A Brief Self-Help Intervention For Anxiety And Depressive Symptoms Utilizing Cognitive Behavioral Therapy And Dialectical Behavior Therapy Within Correctional Settings, Genevieve L. Ray

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

Individuals within incarcerated settings are far more likely to experience symptoms that meet criteria for a mental health disorder compared to the general population. This population is often underserved due to various financial and resource constraints. Self-help interventions have grown in popularity due to their proven effectiveness and accessibility for consumers, particularly for anxiety and depression symptoms. A self-help intervention for those in a correctional setting would not require extensive additional personnel amid financial constraints and would increase access to care. Many self-help interventions that are currently published apply to the community population, but readily accessible resources that reside in …

Disrupted Family Ecosystems: Intergenerational Estrangement, Nonnormative Events, And Perceptions Of Established Adults – A Case Study, Seth Wyncott

Electronic Theses and Dissertations

The issue of intergenerational family estrangement has gained increased exposure in research and popular literature; however, significant gaps remain in understanding the lived experience of adult-children who maintain separation from their parents. Complicating matters, the family is not a solitary unit but is intertangled within a macrolevel sociocultural ecosystem. This ecosystem includes normative and nonnormative stressors which are subject to diverse interpretations depending on the historic and evolving character of the family and its members. As such, it is important to examine the dynamic character of estrangement in familial and sociocultural context.

Utilizing a case study method with semi-structured phenomenological …

Sober Curious: A Treatment Manual For A Semi-Structured Interpersonal Process Group Targeting Substance Misuse In Emerging Adults, Annalise G. Floody

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

This paper presents Sober Curious, an original treatment manual for an eight-session, semi-structured interpersonal process group for emerging adults ages 18–25 with mild-to-moderate substance misuse concerns. This group is designed for university counseling centers and outpatient treatment settings, particularly for individuals who experience substance-related distress, impairment, risk, or ambivalence but may not identify with abstinence-based recovery or formal diagnostic substance use disorder (SUD) language. The manual is grounded in epidemiological data, established substance use treatment guidelines, meta-analytic findings on group psychotherapy and substance use interventions, and the developmental theory of emerging adulthood. Key intervention elements include motivational interviewing (MI) to …

From Print To Film: Political Censorship And Nationalism In Nineteenth And Twentieth-Century Central Europe, Kartik Joshi

The Ozark Historical Review

From Print to Film: Political Censorship and Nationalism in Nineteenth- and Twentieth-Century Central Europe examines the relationship between emerging media technologies, state censorship, and nationalist political movements in Central Europe. Focusing primarily on Austria, the German states, and Hungary, this article traces how governments employed increasingly sophisticated systems of press regulation to suppress nationalist and subversive political discourse while political actors developed their own methods for circumventing those restrictions. The article considers censorship of newspapers, satire, lithographs, and other printed materials before examining the transformative effects of cinema in the twentieth century. As film became increasingly difficult to regulate through …

The Ozark Historical Review, V.53, 2026

The Ozark Historical Review

No abstract provided.

Tool Or Social Actor? How Ai Perception And Interaction Modality Influence Perceived Credibility Of Communicative Ai Over Time, Stefanie H. Klein, Sonja Utz

Human-Machine Communication

People increasingly interact with conversational agents based on artificial intelligence (AI) for a variety of tasks. While these communicative AI (comAI) systems often produce responses that are natural and engaging, the information they provide is not always correct and unbiased. This makes it essential to understand how users perceive the credibility of such systems. Drawing on data from four waves of a longitudinal survey (NT1 = 618, NT4 = 485), we investigated how active users’ perceptions of comAI as a tool or social actor and their primary interaction modality (text vs. voice) influence the credibility perceptions of comAI, both cross-sectionally …

The Comforting Potential Of A Social Robot, Regardless Of Looks And Designed Affordances, Peggy Van Minkelen, Elly A. Konijn

Human-Machine Communication

Two field studies examined the comforting potential of an autonomously functioning humanoid robot and whether participants formed an affective bond with it, guided by a new Human-Robot Bonding framework. We designed a 2 (Designed Humanness: high versus low) × 2 (Designed Affordances: high versus low) mixed-factorial repeatedmeasures field experiment. Participants completed a stress-inducing task, followed by an interaction with the robot, which provided comfort. We measured participants’ stress levels (objectively via heart rate and subjectively via perceived stress) and their level of Bonding with the robot. Results showed that perceived stress, but not heart rate, decreased after human-robot interaction across …

The Right Kind Of Human-Like: Measuring And Testing Human-Likeness Perceptions Of Text-Based Conversational Agents, Carolin Ischen, Elizabeth Wang, Edith G. Smit

Human-Machine Communication

While conversational agents are designed with human-like features to facilitate interaction, the scholarly understanding of users’ perception of human-likeness as a key concept in human-machine communication remains underexplored. This paper provides a threelegged typology of human-likeness perceptions of text-based conversational agents, including the dimensions of appearance, capacity, and personality. Based on responses of 373 participants, the paper identifies measurement instruments for the different dimensions. Furthermore, it tests to what extent social cues commonly applied in customer service chatbots influence the different dimensions of human-likeness perception. Next to a set of direct measurements, factor analysis confirmed two indirect measurements for appearance-based …