Digital Commons Network^™

Stakeholder Perspectives On Local Contractor Capacity Development Initiatives In Zambia, Richard Ndhlovu, Innocent Musonda, Adetayo Onososen

CIB Conferences

Strengthening the capabilities of indigenous contractors is crucial for sustainable economic growth and reducing dependence on imported expertise in developing countries. This study analyses stakeholder perspectives on improving contractor capacity and identifies the systemic barriers that lead to higher failure rates. This study employed a qualitative methodology, utilizing semi-structured interviews to gather data from eighteen (18) industrial specialists purposefully selected from contractors, consultants, clients, and funding organizations. Significant findings indicate nine principal themes extracted from interview replies. The study highlights that achieving a holistic training design requires multidimensional delivery to produce a structured learning environment that enhances skill acquisition. The …

Style, Clint Burnham

CLCWeb: Comparative Literature and Culture

Entry for special issue, 'Keywords for Value and Culture'

Figuration, Sean O'Brien

CLCWeb: Comparative Literature and Culture

Entry for special issue, 'Keywords for Value and Culture'

Estrangement, Harry Warwick

CLCWeb: Comparative Literature and Culture

Entry for special issue, 'Keywords for Value and Culture'

Fatigue Behavior Characterization Of Magnesium And Aluminum Alloys In Military Trainer Aircraft, Alysson Sousa Rabelo, José Aécio Gomes De Sousa, Feliciano José Ricardo Cangue, Luiz Leroy Thomé Vaughan

Journal of Aviation Technology and Engineering

The increasing demand for lightweight and durable materials in aviation industry necessitates continuous improvements in research into fatigue-resistant alloys to improve operational efficiency, safety, and cost-effectiveness. The estimation of the operational life of aeronautical structures is directly related to the study of their mechanical properties, particularly concerning fatigue behavior due to the constant exposure to cyclic loads. For this reason, the aeronautical sector often invests significant capital in research for the development of new alloys that enable high structural performance, lightness, low cost, high durability, and tolerance to environmental damage. Despite the advancements in composite materials, aluminum and magnesium alloys …

Integrating Science Of Reading Principles Into Mathematics Instruction In Early Education, Sarah Eason

Science of Reading

Educator preparation programs have an opportunity to help future teachers understand how literacy and mathematics domains support one another. Language and literacy are foundational to mathematical thinking, communication, and problem solving. Integrating science of reading (SOR) principles into mathematics instruction can strengthen children’s learning across domains while helping educators maximize instructional time. This brief reviews research connecting language and mathematics learning and highlights practical strategies for incorporating SOR-aligned practices into early childhood mathematics instruction and teacher preparation.

Long Panel Studies Of Small-Scale Rural Societies In The Global South: What Is Their Value, Why Are They Rare, And Suggestions To Make Them Happen, Jonathan Bauchet, Ricardo Godoy, William R. Leonard, Victoria Reyes-Garcia, Asher Y. Rosinger, Susan Tanner, Eduardo A. Undurraga

Department of Agricultural Economics Faculty Publications

Many topics in the behavioral sciences and epidemiology require researchers to directly observe entities (e.g., individuals, households) over a long time to identify lasting effects. Long-term panel data collection is more common in high-income countries than in small-scale rural societies (SSRS) of low-income countries. SSRS are mobile, nature-dependent, linguistic minorities, and highly autarkic. Analyzing such data using a life-course perspective can help uncover patterns that align or upend what we know from high-income countries. This study a) reviews long (>∼10 year) panels in SSRS (n = 9), b) extends the analysis to cover somewhat comparable societies of smallholders (n …

The Purdue Rising Scholars Experience: Exploring Student Success, Robert M. Stwalley Iii, Carol S. Stwalley, Roger Tormoehlen

Purdue University Press Books

Many intelligent low-socioeconomic status high school students correctly view STEM majors as a way out of poverty, but the challenges to ultimate success are plentiful. For those who applied but did not initially gain admittance into an engineering department, the Rising Scholars program at Purdue University offered these undergraduates a pathway through college that brought them into contact with a network of professional mentors, including university professors, staff, and graduate students. Program participants were also provided opportunities to engage in team-building activities and teaching seminars that involved writing research papers focused on postgraduate careers. Although no longer in operation, the …

Research Instrumentation Center (Ric), Ryan Hilger, Purdue University Office Of Research

University Research Core Facility Boilerplate Descriptions

No abstract provided.

Convergence Education In A Stem-Focused University: An Ethnographic Study Of A Cross-College Design And Innovation Program, Greg J. Strimel, Sherylyn Briller, Jackson Otto, Rebecca Martinez, Douglas Pruim, Todd R. Kelley

School of Engineering Technology Faculty Publications

Background

Innovation often transcends the bounds of individual disciplines, yet undergraduate teaching is still largely organized today within single disciplines and respective academic units. Convergence education offers a promising organizational approach to bring transdisciplinary teaching and learning into undergraduate education by aligning institutional structures, pedagogy, and partnerships around meaningful, innovation experiences to address contemporary problems. However, longstanding academic silos in higher education hinder the adoption of convergence-focused pedagogies. Therefore, this study examined the three-year implementation of a novel convergence education initiative developed to foster design and innovation capabilities across multiple academic disciplines. By integrating faculty from the university’s engineering technology, …

Humanizing Engineering For Preservice Elementary Teachers Through Sustainable Engineering Stories, Jeffrey D. Radloff, Madison M. Morris, Jacob Pleasants

Journal of Pre-College Engineering Education Research (J-PEER)

Meeting the goals of US K–12 science education reform requires that preservice elementary teachers (PSTs) understand engineering as a specialized discipline and a human endeavor that addresses real-world issues. Yet in their formal education, few PSTs receive opportunities to learn about the humanistic dimensions of engineering: engineers’ personal values and motivations, the sociocultural nature of engineering work, and the societal significance of engineering. Storytelling about engineering offers a practical way to give PSTs access to these ideas. This study examines the impacts of integrating storytelling about engineering in a science methods course for future elementary school teachers. Over a two-year …

Essentials Of Adolescent Literacy, Joan Sedita

Science of Reading

Adolescent literacy is a critical determinant of academic success, postsecondary readiness, and effective communication. As students transition from elementary to middle and high school, they encounter increasingly complex texts and are expected to use advanced reading and writing skills across content areas. While it is often assumed that students have mastered foundational literacy skills by this stage, many continue to struggle, placing them at a significant disadvantage.

This research brief examines the concept of adolescent literacy, highlighting its dual focus on content literacy—general strategies used across disciplines—and disciplinary literacy—specialized practices unique to specific subject areas. Within a Multi-Tiered System of …

High-Speed Driverless Racing: Lessons For Autonomous Mobility, Justin Gan, Samuel Labi

Center for Connected and Automated Transportation

Driverless racecar competitions are often perceived as recreational. However, their academic, industry, and research benefits are potentially tremendous, as several significant lessons can be learned from these competitions to advance autonomous mobility. This study was motivated (and its conduction facilitated) by the active involvement of the authors in several autonomous racing initiatives in the United States. The study first synthesized and analyzed information from existing literature related to the key modules of autonomous vehicle (AV) operations as part of AV racing competitions and identified some lessons that could be learned in the context of each module – perception and sensing, …

Slender And Nonslender Delta Wing Simulation And Analysis, Aashish Gyawali, Brinda Bhattarai, Nishesh Bista, Sundeep Rao Dr

Journal of Aviation Technology and Engineering

Stability, controllability, and maneuverability are critical factors for aircraft with short takeoff and landing distances, such as modern fighter aircraft and unmanned aerial vehicles. Delta wings are commonly employed in these aircraft due to their efficient aerodynamics, enabling high maneuverability, and performance at both low and high speeds. Nonslender wings are used for low-speed performance and agility, while slender wings offer reduced drag and are suited for high-speed operations. In flight, an aircraft encounters different airflow patterns including vortices that circulate from the higher-pressure lower side of the wing to the lower-pressure upper side, contributing to lift generation. However, as …

Engineering 50 Years From Today: A Purdue Engineering Community Perspective, Arvind Raman

Purdue University Press Books

Since opening its doors in 1874, Purdue University’s College of Engineering and its graduates have been at the forefront of technological breakthroughs and are now poised to lead the next generation of engineers in the United States and around the globe. Featuring more than twenty-five essays from former Boilermakers, Engineering 50 Years From Today both celebrates the program’s 150th anniversary and looks ahead, exploring what the field of engineering might look like half a century from now. Leading luminaries from Purdue’s engineering community, including prominent university professors as well as innovators working in the private sector, reveal how technologies related …

“What You Bring Matters”: A Case Study Of Middle School Engineering Teachers’ Pedagogical Content Knowledge, Jessica D. Gale, Dyanne Baptiste Porter, Meltem Alemdar, Sunni H. Newton, Abeera P. Rehmat, Jasmine Choi

Journal of Pre-College Engineering Education Research (J-PEER)

Precollege engineering teachers bring unique backgrounds to their teaching practice. Many follow nontraditional routes to teaching engineering, often coming from teaching other subjects or careers in other fields. Among the many variations influencing engineering teaching practices is pedagogical content knowledge (PCK). This multiple case study explores the PCK of five middle school engineering teachers implementing the same middle school engineering curriculum, STEM innovation and design (STEM-ID). STEM-ID engages students in contextualized challenges that incorporate foundational mathematics and science and advanced manufacturing tools such as computer-aided design and 3D printing while introducing engineering concepts such as pneumatics, aeronautics, and robotics. Drawing …

Empowering Caregivers Through Informal Stem Counterspaces: A Reflective Analysis Of Parental Workshops, Renee Gibert, Desmine Robinson, Virgina Booth Womack

Purdue Journal of Service-Learning and International Engagement

Students’ academic success particularly in mathematics, where early mastery lays the foundation for critical thinking and problem-solving skills, can be directly tied to caregiver engagement (Jeynes, 2012; Epstein, 2018). Algebra by 7th Grade (Ab7G) at Purdue is a Saturday informal STEM counterspace that provides math tutoring and engineering-focused projects to participants in grades 1–10. Students are mentored by Purdue graduate and graduate students. The mentors facilitate mentoring, tutoring, and engineering projects. Ab7G is a hybrid format that meets for six sessions per academic semester on Saturdays. Duke Energy and Chevron provide funding for Ab7G, ensuring accessibility at no cost to …

Teaching Integrated Stem In Middle School, S. Selcen Guzey

Purdue University Press Books

Teaching Integrated STEM in Middle School is a valuable resource for educators, researchers, and policymakers who are committed to furthering integrated STEM education. Through a review of the literature on the topic, the volume offers a clear understanding of the impact of integrated STEM education on instructors’ teaching practices and student outcomes. The book presents a framework and instructional guide that educators can utilize to develop new curricular materials. Two sample units—focused on designing a two-stage water filter and formulating sunscreen—provide step-by-step guidance for lesson implementation and offer strategies for assisting students as they use engineering models to devise design …

Teachers’ Perspectives On Facilitating Design Talks With Young Learners, Chelsea J. Andrews, Jessica Watkins, Kristen B. Wendell, Rae Woodcock, Vera Gor, Naina Sood Fox, Molly Malinowski, Rachel Bandi, Shannon Rausch

Journal of Pre-College Engineering Education Research (J-PEER)

With intentional teacher facilitation, whole-class conversations can help students refine their engineering reasoning, consider new ideas, and make novel connections between different ways of defining or solving a problem. These conversations can also help students expand their engineering thinking to include perspectives of care and socioethical deliberations. A team of classroom teachers and university researchers has been enacting and studying whole-class engineering design conversations—Design Talks—in first through sixth grade classrooms. We organize Design Talks in five genres: problem-scoping talks, idea generation talks, design-in- progress talks, design synthesis talks, and impact talks. After five years of planning, implementing, and analyzing recorded …

Explanations For Machine Learning Pipelines Under Data Drift, Jahid Hasan, Romila Pradhan

Purdue Polytechnic Graduate Student Poster Symposium

Ensuring the robustness of data preprocessing pipelines is essential for maintaining the reliability of machine learning model performance in the face of real-world data shifts. Traditional methods optimize preprocessing sequences for specific datasets but often overlook their vulnerability to future data variations. This research introduces a vulnerability score to quantify the susceptibility of preprocessing components to data shift. We propose a Linear Regression approach to establish a predictive relationship between the vulnerability of the pipeline components and changes in the model’s performance. The generated relationships act as explanations for practitioners of the system and help them quantify the robustness of …

College Student Perceptions Of Ai Teaching Assistants: Bridging Technology And Human Connection For Effective Learning Support, Sarah Steimel

International Journal of Teaching and Learning in Higher Education

This study examines college students’ perceptions of AI Teaching Assistants (AITAs) in higher education, focusing on their communication experiences and expectations. Using qualitative data from (n=89) open-ended survey responses, six key themes emerged, spanning differences in information processing, social interaction, and task efficiency. Students appreciated AITAs for their speed, availability, and potential to provide unbiased feedback, yet expressed concerns about accuracy and trustworthiness. While AITAs were seen as approachable for simple or low-stakes inquiries, students emphasized the importance of human instructors for complex, nuanced, or emotional support. The findings highlight a preference for maintaining human connections in education while leveraging …

High Stakes Literacy Testing: Indiana’S Iread-3, Christy Wessel Powell, Karyn Tomkinson, Whitney Rippy

Science of Reading

Indiana is one of a few states to enact a high stakes literacy test in third grade, the IREAD-3 test. High stakes testing is often a useful way to ensure a particular level of academic proficiency is met to allow students to succeed in a new setting, like college, or leave high school with desired skills. However, the requirement to automatically retain third graders who do not pass the IREAD-3 test without additional information or considerations, is not supported by research (AERA, 2000). These data highlight the critical need for educators and administrators to understand high-stakes standardized tests, as they …

A Strengths, Weaknesses, Opportunities, And Threats (Swot) Analysis Of Chatgpt In Academic Help-Seeking, Fan Yang

International Journal of Teaching and Learning in Higher Education

This study explores the use of ChatGPT as a help-seeking tool in educational contexts, examining both its potential benefits and costs through a SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis. The purpose is to provide a comprehensive understanding of the various internal and external factors that either promote or hinder the use of ChatGPT for academic help-seeking. The strengths of ChatGPT, such as its 24/7 availability to provide immediate responses, non-judgmental tone, and the ability to provide personalized help based on specific prompts, position itself as a valuable resource for help-seekers. However, the low quality of the responses generated by …

Statistical Analysis Of Log Transformation Effectiveness In Air Traffic Movement Forecasting During Covid-19 In South Africa, John Lehlaka Masekoameng

Journal of Aviation Technology and Engineering

This study evaluates the effectiveness of log transformation in enhancing multiple regression models used to forecast air traffic movements (ATMs) in South Africa during the COVID-19 pandemic. Using 60 monthly observations from October 2016 to September 2021, the analysis incorporates variables such as revenue, lockdown levels, COVID-19 metrics, exchange rates, gross domestic product, and population. Two models are compared: one using raw ATMs and another with log-transformed ATMs as the dependent variable.

While the untransformed model shows stronger explanatory power (R² = 0.904, adjusted R² = 0.891) compared to the log-transformed model (R² = 0.772, adjusted R² = 0.741), the …

Advanced Qualification Program Assessments In Aviation Higher Education: A Theoretical Framework, Jorge L. D. Albelo Ph.D., Victor M. Fraticelli Rivera Ph.D.

Journal of Aviation Technology and Engineering

This study investigates the integration of an Advanced Qualification Program (AQP)-centered approach into aviation higher education, aiming to refine assessment methods and enhance the educational experience of future aviation professionals. Guided by research questions exploring the strengths, limitations, key characteristics, and potential improvements of AQP-centered assessments, the study reveals a strong consensus among students and faculty. The AQP model, traditionally an alternative to conventional pilot training under 14 CFR Parts 121 and 135, offers a structured, industry-relevant framework emphasizing clear evaluation processes, multilevel knowledge and skill assessments, and high academic performance. Findings indicate that effective AQP assessments balance theoretical knowledge, …

Case Studies To Examine Farmer Perceptions And Implementations Of Buffer Capacity In Southeastern Ontario, Bryan Collins

Journal of Applied Farm Economics

Buffer capacity measures the ability of a system to maintain its original function when confronted with outside stresses and is often considered to be a key component of resilience. Farmers in southeastern Ontario are facing several threats such as seasonal drought and volatile markets, prompting necessary responses on how to effectively manage their farms. This research study used an exploratory grounded theory approach to inquire how farmers seek to enhance buffer capacity on their farm by asking (1) what short-term threats their farm faces and (2) what strategies they are employing to navigate those threats. Ten farms in the Inverary …

Effects Of Oral Exams On Entry-Level Stem Mathematics Students, Krysten A. Pampel

International Journal of Teaching and Learning in Higher Education

This study investigates the efficacy of oral examinations as an alternative assessment method in college algebra courses, focusing on their impact on student retention of mathematical concepts. Through a comparative analysis of two groups, one undergoing traditional assessment and the other receiving oral examinations, this research explores both quantitative assessment scores and qualitative feedback. While quantitative analysis reveals no significant difference in summative assessment performance between the two groups, qualitative data highlights the benefits of oral examinations, including immediate feedback, enhanced critical thinking, and holistic evaluation of student capabilities. Despite limitations in sample size, the study suggests that oral examinations …

Design Concept For Low-Cost Management Of Early Medial Or Lateral Osteoarthritis, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Working Papers

Background: Asymmetrical joint space narrowing occurs in many cases of knee osteoarthritis (OA). The objective of the present study is to elucidate the biomechanics of lateral wedges in shoes used to widen the medial joint space in predominantly medial OA, and the biomechanics of medial wedges in shoes used to widen the lateral joint space in predominantly lateral OA. Methods: Medial or lateral shift of the center of weight bearing of the foot is largely offset by movement of the flexible hip joint, which changes the tilt angle of the femoral head in the frontal plane. The altered tilt can …

Does Sequence Matter? Impact Of Redesigning Sequential Calculus Course On Students’ Learning Outcomes, Chantal Levesque-Bristol Dr., Wonki Lee Dr., Emily M. Bonem, Benjamin C. Wiles, Jennifer D. Moss, Wilella D. Burgess, Weiling Li

International Journal of Teaching and Learning in Higher Education

As colleges and universities increasingly transform their STEM courses through the adoption of more active, student-centered pedagogies, there is a growing need to understand the impact of these educational innovations on student outcomes. This study is conducted in the context of a university-wide faculty development and course redesign project, IMPACT (Instruction Matters, Purdue Academic Course Transformation). IMPACT supports faculty in implementing student-centered pedagogical practices and creating equitable and inclusive learning environments. This study focuses on a sequence of two introductory calculus courses (Calculus 1 and Calculus 2, hereafter CALC 1 and CALC 2) that were transformed as part of the …

Understanding Technology Integration Through Hermeneutic Interpretation: A Study Of Faculty Experiences At An Hbcu, Jill Ardley, Tamara Smith-Moyler, Keesha M. Kerns, Beatrice Darden-Woody, Priscilla Spencer, Ronald White

International Journal of Teaching and Learning in Higher Education

This study explores how six education faculty members in the School of Education at a Historically Black College and University (HBCU) in the southeastern United States interpret and implement instructional technology instruction through a hermeneutic theoretical lens. Grounded in the HBCU’s School of Education vision statement, the research investigates how faculty members’ understanding of human learning behaviors shapes their pedagogical choices within School of Education courses. The qualitative analysis revealed three key themes: (1) Technology as a Tool for Equity and Inclusion, (2) Alignment with the School of Education Vision, and (3) Student-Centered, Practice-Oriented Use of Technology. Rather than employing …