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 …

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.

Identifying And Addressing Problematic Studies In Allergy And Asthma Research: A Commentary, Alexandro W L Chu, Gordon H Guyatt, Jason W Busse, Romina Brignardello-Petersen, Xiajing Chu, Daniel G Rayner, Paul Oykhman, Vanessa Wong, Yetiani Roldan, Diane R Baker, Leonard B Bacharier, Lisa A Beck, Moshe Ben-Shoshan, Bradley Chipps, Flavia Hoyte, Elliot Israel, David M Lang, Sameer K Mathur, Sharmilee M Nyenhuis, Paul M O'Byrne, Eric T Oliver, John Oppenheimer, Tamara T Perry, Katherine Rivera-Spoljaric, Sarbjit S Saini, Javed Sheikh, Kaharu Sumino, Susan Waserman, Elissa M Abrams, Aikaterini Anagnostou, Jonathan A Bernstein, Anne K Ellis, David B K Golden, Caroline C Horner, Dennis K Ledford, Jay Lieberman, Giselle Mosnaim, Matthew A Rank, Marcus Shaker, Julie Wang, David A Khan, Derek K Chu

Center for Medical Ethics and Health Policy Staff Publications

Randomized controlled trials underpin evidence-based medicine, but a growing proportion of trials contain implausible, inaccurate, or fabricated data. When such studies are incorporated into systematic reviews, they distort effect estimates, inflate evidence certainty, and can mislead the guideline recommendations that the reviews aim to inform. Within 8 recent American Academy of Allergy, Asthma & Immunology and American College of Allergy, Asthma and Immunology Joint Task Force on Practice Parameters (JTFPP) systematic reviews, 17% of trials published between 2021 and 2024 were problematic, and in a network meta-analysis of antihistamines for chronic urticaria, 39% of recent trials were excluded because of …

Business Educational Skills For Successful Aviation Fire Officers, Leo Sedlmeyer

All Faculty and Staff Scholarship

Purpose: This paper explored the business educational skills aviation fire officers use to manage airport fire departments.

Design/Methodology/Approach: The methodology was a qualitative phenomenological study design. The participants began with 10 aviation fire officers from airports throughout the USA who were at least 28 years old, in a leadership role, and had at least 10 years of experience as aviation fire officers (Buttenschon, 2016). Saturation was reached at seven during the interview phase. The limitations of this study were gaining participants' trust and obtaining comprehensive information from them.

Findings: Six themes emerged from this study, with the top three identified: …

Roots And Systems: A Portfolio Of Clinical Growth, Trauma-Informed Care, And Culturally Centered Practice, Sarah Rice

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

Act And Posttraumatic Growth In Military Veterans: Growth Through Flexibility After Adversity, Andrew J. Moller

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

Military veterans are disproportionately exposed to potentially traumatic events across service eras. While much of the clinical and research literature has focused on posttraumatic stress disorder (PTSD) and symptom reduction, a growing body of work highlights the possibility of posttraumatic growth (PTG) following adversity. PTG refers to positive psychological changes that may emerge through engagement with traumatic experiences, including enhanced appreciation for life, renewed purpose, personal strength, deepened relationships, and reintegration into community roles. Importantly, PTG does not imply the absence of distress but may coexist alongside ongoing trauma-related symptoms. Understanding processes that facilitate growth alongside suffering may support more …

A Policy Analysis Of Higher Education Support For Foster Youth In The Colorado Child Welfare System, Krystal Robles

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

This policy analysis examines how two Colorado laws, House Bill 22-1374 (Foster Care Success Act), and Senate Bill 22-008 (Higher Education Support for Foster Youth), aim to improve educational outcomes and long-term stability for youth who age out of the foster care system. Critical Policy Analysis (CPA) and Resilience Theory are used in this paper to examine how these policies address systemic inequities, promote resilience, and offer protective factors that support educational attainment. Using policy review, state policy comparison, stakeholder interviews, and community perspectives, I evaluated how the implementation, effectiveness, and limitations of these bills shape real-world impact. The findings …

Critical Policy Analysis Of Student School Board Members: From Symbolic Seats To Shared Power, Reina M. Cruz

Electronic Theses and Dissertations

The aim of this study was to critically examine student voice in school boards, specifically how student representation is enacted, negotiated, or constrained in public school board meetings across multiple states. This study used a critical political analysis, multi-site, multi-year case study, as I wanted to showcase the different forms of student board memberships and the enactment of policy. In total, three school years of public regular board meetings were observed across three different school districts. The study employed a critical policy analysis to examine state statutes, district bylaws, board policies, meeting recordings, agendas, minutes, and transcripts.

I examined variations …

Determinants Of Antenatal Care Utilization: A Community-Based, Cross-Sectional Study In Morang And Sunsari Districts, Eastern Nepal, Sunil Shah, Chandra Jha

Journal of Social, Behavioral, and Health Sciences

This study examined the factors influencing antenatal care (ANC) utilization in the eastern region of Nepal, focusing on the Morang and Sunsari districts, with the aim of identifying key determinants affecting ANC uptake and assessing the extent of ANC service utilization among mothers. Using lot quality assurance sampling, a community-based, descriptive, cross-sectional design was employed, surveying 164 mothers who had given birth within the previous 12 months; data were collected from June through November 2023. Data were collected through a semi-structured questionnaire and analyzed using SPSS, with descriptive statistics, chi-square tests, and logistic regression. Findings revealed that 80.5% of respondents …

Exploring The Perspectives Of Individuals Who Were Formerly Incarcerated To Determine The Barriers And Facilitators To Successful Reentry Programs In Maryland, Ansu Sawi Momoh

Walden Dissertations and Doctoral Studies

Due to persistently high rates of incarceration and recidivism, the Maryland Department of Public Safety and Correctional Services developed policies and programs geared towards reducing recidivism. Existing literature indicated that successful reentry depends on access to coordinated support services, there was a lack of qualitative studies that explored the perspectives of individuals who were formerly incarcerated, specifically in the state of Maryland. The purpose of this generic qualitative research was to understand the reentry process from the perspective of 12 individuals who were formerly incarcerated. Semi structured interviews were used to explore the barriers and facilitators within the re-entry programs …

Post-Pandemic Telebehavioral Health: Sustaining And Regulating Remote Mental Health Care As A Core Modality, Weiqiao Dong

Dartmouth College Master’s Theses

The United States continues to face a persistent mental health crisis after the COVID-19 pandemic, raising a policy question about the long-term role and regulation of telebehavioral health as a core modality of care. This thesis examines that question through a case study of New York State, an early center of the pandemic and a leader in telehealth policy reform.

Guided by the Health Policy Triangle framework, this thesis integrates longitudinal data from all 62 New York counties for 2010-2025 with a 2025 cross-sectional dataset covering 61 counties. Seventeen standardized indicators are organized into four dimensions: geographic, economic, demographic, and …

Price Tags Of Goodwill: The Examination Of General Strain Theory And Official Behavior, Kathryn A. Loving

Doctoral Dissertations and Projects

Applying the theoretical framework of Agnew’s (1992) General Strain Theory, this project aimed to understand the connection between strain-induced responses and improper official behavior, considering an individual’s intersectionality (sexuality). Despite extant empirical data recognizing that justice officials' duties expose them to a barrage of human misery, vicarious trauma, and intense circumstances that negatively impact their psyche, little research exists about how compassion fatigue relates to improper official conduct. When culturally induced expectations become divorced from an official despite a coordinated institutional emphasis, negative police responses can jeopardize public service. Because criminal justice officials are the backbone of public safety, it …

The Impact Of Blockchain-Linked Audit Trails And Stakeholder Feedback Loops On Ethical Adherence In The U.S. Federal And State Agencies, Leon Pikor

Doctoral Dissertations and Projects

This dissertation explores the impacts of blockchain-based audit trails and stakeholder feedback loops on ethical conduct in U.S. federal and state public administration. The study addresses ongoing ethical problems in government, such as low levels of accountability, inadequate procedures, policy manipulation, and a waning public confidence in government, despite the existence of government ethics codes and oversight bodies. Ethical adherence is considered using two complementary theories: the virtue theory (Honesty, Fairness, Integrity, Responsiveness, Trust) and the deontological theory (Duty fulfillment, Rule following, Documentation, Accountability, Procedural compliance). The study was conducted with closed and open-ended answers from public administration participants who …

Evaluating Administrative Strategies For Implementing Emergency Response Policies: A Public Administration Approach To Active Shooter Incidents, Christopher J. Ferro

Doctoral Dissertations and Projects

The purpose of the proposed study is to address the persistent problem of ineffective implementation of emergency response policies for active shooter incidents within public agencies. Despite the development of numerous laws, public policies, and preventive measures aimed at mitigating such incidents, challenges remain in how such policies are administered and executed by public administrators. The proposed study will examine the administrative processes and strategies that shape how relevant policies are implemented and evaluated for effectiveness. The research will incorporate a qualitative design by examining case studies of successful and unsuccessful active shooter incident responses, conducting semi-structured interviews with public …

The National Law Enforcement Staffing Shortage’S Impact On Central Texas, Mark Vincent Valli

Doctoral Dissertations and Projects

This study examined the relationship between perceived support from public administrators and law enforcement supervisors/executives and staffing levels in Central Texas law enforcement agencies. Guided by Social Exchange Theory (SET) and Public Service Motivation (PSM), the research investigated how administrative and supervisory support influences vacancy and turnover rates, two key indicators of staffing stability. A convergent parallel mixed-methods design was employed to integrate quantitative and qualitative perspectives. Quantitative data were collected from agency records and surveys administered to sworn law enforcement personnel across the Central Texas region (defined for this study as the Capital Area Council of Governments (CAPCOG) associated …

Policy System Of Us Bioeconomy Based On “3ms” Framework, Jingyan Zhou, Nianping Tian, Xuehui Jin, Cuijuan Yin

Bulletin of Chinese Academy of Sciences (Chinese Version)

The United States is a dominant power in the global bioeconomy. An in-depth analysis of its policy system characteristics holds significant reference value for China to further formulate China’s bioeconomy strategy and drive the development of China’s bioeconomy. This study employs the “3Ms” policy analysis framework to conduct a comprehensive analysis of the US bioeconomy policy from three dimensions: macro strategy, meso architecture, and micro structure. The research reveals that the US bioeconomy policy demonstrates the following characteristics in the macro strategy: being systematic, comprehensive, and scientifically decision-making; in the meso architecture: forming government-congressional cooperation and multi-party collaboration; and in …

Antiterrorism Policies And Curbing Youth Involvement In Violent Extremism In Nigeria, Timothy Melaye

Walden Dissertations and Doctoral Studies

Nigeria continues to face significant challenges from extremist groups such as Boko Haram, unidentified militia groups, and bandits. The radicalization of youths has played a central role in the country's ongoing violent extremism and general insecurity. Efforts to curb youth radicalization remain largely unsuccessful and pose a major challenge in the country. The existing literature on curbing youth violent extremism focuses on the use of force, while other scholars argue for a complex interplay among economic, social, political, and environmental factors. They also considered that high illiteracy, lack of religious understanding, poverty, unemployment, psychological factors, and unstable family environments contribute …

Can The Safety Net Support Families Through Childbirth?, Hyojeong Kim, Colleen Heflin, Taryn Morrissey

Center for Policy Research

Childbirth is a life event that often disrupts maternal employment and household earnings just as family expenses increase. In the United States, families do not have access to a national paid parental leave program and must rely on a patchwork of safety net programs that were not designed specifically to support households during pregnancy and the immediate postpartum period. This brief uses linked administrative data from the Virginia Longitudinal Data System (2016–2021) to describe changes in household earnings and social welfare benefits before and after childbirth among low-income mothers receiving the Supplemental Nutrition Assistance Program (SNAP) or Temporary Assistance for …

Examination Of The Bureau Of Indian Affairs Public Policy Implementation In Support Of Sovereign Tribal Nations, Erna Mae Faber

Walden Dissertations and Doctoral Studies

Social and economic disparities in the Midwestern Reservation Community have persisted for more than five decades despite the enactment of federal Indian policy designed to address them. Based on the existing research, the Bureau of Indian Affairs’ (BIA’s) failure to effectively administer programs addressing health care, housing, and economic opportunity has perpetuated systemic inequities that disproportionately affect tribal nation members. The purpose of this generic qualitative study was to explore how members of the Midwestern Reservation Community viewed the implementation of BIA public policies intended to support tribal nations through the lens of the resource dependence theory, the narrative policy …

Southeastern Michigan Firefighters’ Experiences With Their Organization’S Employee Assistance Program, Angela Patricia Johnson

Walden Dissertations and Doctoral Studies

Mental health challenges among first responders require coordinated stakeholder efforts. Although employee assistance programs (EAPs) are commonly offered as workplace benefits, little is known about firefighters’ experiences with these programs and how they can be tailored to meet their unique needs. Existing literature suggested that EAP utilization among firefighters is influenced by program awareness, confidentiality concerns, organizational support, stigma, and the extent to which services are tailored to first responders’ needs. Using a generic qualitative design and policy feedback theory, this study explored southeastern Michigan firefighters’ experiences with EAPs. Purposive sampling was used to recruit 11 firefighters for semi structured …

Unpacking Treatment Effect Heterogeneity In A Large-Scale Dropout Prevention Experiment, Thomas Dee, Chloe R. Gibbs, Rebecca Margolit-Chan, Lillian Morrell, James X. Sullivan

Upjohn Institute Working Papers

Timely high school completion is a critical step in successful transitions to post-secondary schooling and the labor market. This randomized controlled trial, deployed in two urban, disadvantaged school districts, tests the effectiveness of a mature and comprehensive student-support program on an unusually large scale (n=2,528). While overall effects on graduation rates are small and statistically insignificant, exploratory analyses reveal notable variation by site and over time, mirroring heterogeneity in treatment timing and program implementation. These findings highlight the challenges of scaling interventions and raise concerns about generalizing results from small-scale, single-site evaluations.

From Silence To Story: Reconstructing Narratives Of Mental Illness, Family, And Self Among U.S. Adult Children Of Parents With Mental Illness, Mallory M. Mccorkle

Seton Hall University Dissertations and Theses (ETDs)

The existing literature on children of parents with mental illness has largely focused on developmental risks and psychological outcomes, with limited attention to how these individuals construct narratives of mental illness, family, and self within broader sociocultural contexts. Guided by social constructionism, symbolic interactionism, and the master narrative framework, this qualitative study explored how adult children of parents with mental illness make meaning of their experiences within the sociocultural context of the United States. Utilizing narrative analysis within a critical paradigm, semi-structured interviews were conducted with 11 adult children who grew up with at least one parent with a mental …

Review Essay: The New Misogyny And The Rise Of Violent Extremism, Shannon Smith

The Journal of Social Encounters

No abstract provided.

Review Essay: Nonviolent Civilian Protection During Conflict, John Ashworth

The Journal of Social Encounters

No abstract provided.

Uganda’S Two Tyrants, Helen Epstein

The Journal of Social Encounters

No abstract provided.

Review Essay: The Original Sin Of Humanity, John Sniegocki

The Journal of Social Encounters

No abstract provided.

Review Essay: The Persistence Of Community In Our Transactional Age, Bill Droel

The Journal of Social Encounters

No abstract provided.

The Rights Of Religious Minorities In Sudan: A Case Study Of Armenians, Jon Armajani

The Journal of Social Encounters

This essay examines the constitutions of the Republic of Sudan and minority rights, with a focus on Armenians in that country.  It provides (1) the demographics of Sudan; (2) an overview of the Armenians of Sudan; (3) a history of Sudan’s constitutions; (4) an analysis of their provisions and related laws on minority rights, citizenship, naturalization, and inheritance; (5) an overview of Sudan’s civil war, which began on April 15, 2023, and (6) a concluding section which analyzes risks to Armenians and other religious and ethnic minorities in Sudan.

Riyadh Charter On Artificial Intelligence For The Islamic World, - Islamic World Educational, Scientific And Cultural Organization (Icesco), - Saudi Data And Artificial Intelligence Authority (Sdaia)

The Journal of Social Encounters

The Riyadh Charter on Artificial Intelligence for the Islamic World was launched by the Islamic World Educational, Scientific and Cultural Organization (ICESCO) and the Saudi Data and Artificial Intelligence Authority (SDAIA) in September 2024, in collaboration with the Saudi National Commission for Education, Culture, and Science, during the third Global AI Summit (GAIN Summit) in Riyadh.

The Charter has been widely recognized and endorsed by Islamic scholars and policymakers. During the 26th Session of the Council of the International Islamic Fiqh Academy, it was highlighted as a moral and strategic compass for AI technologies, addressing the limitations of existing international …

Preliminary Report - Evidence-Based Assessment Of Opportunities, Risks And Impacts Of Artificial Intelligence, - United Nations Independent International Scientific Panel On Ai

The Journal of Social Encounters

No abstract provided.