Engineering Commons^™

Indiana Stem Teachers’ Perceptions Of The Shift From In-Person To Virtual Training During The Covid-19 Pandemic, Steve Heinold

Indiana STEM Education Conference

The COVID-19 pandemic brought uncertainty to Indiana teachers in 2020. School closings caused disruptions to teachers’ classroom settings, ongoing training, and social and mental well-being (Pozo-Rico et al., 2020). Indiana GEAR UP’s commitment to teacher professional development for STEM educators led to a shift from their in-person summer teacher training sessions to virtual, just months after the school shutdowns in spring 2020. Participant evaluations showed that teachers appreciated the virtual training options and were able to learn new strategies to apply to their new virtual learning spaces. The online training sessions also had drawbacks. This research brief describes recommendations to …

Spatio-Visual Reasoning And Teamwork Through Hands-On Stem Construction Activities, Comfort Temitope Aje, Maria Eloisa C. Nuguid, Melihan Ünlü, Humphrey Chinenye Ochulor

Indiana STEM Education Conference

This study examined a STEM activity in which students in grades K-6 designed and built a model of Snoopy’s doghouse with considerations for constraints, teamwork, and iterative design. By combining spatial reasoning with imagination and visualization, students collaborated to create 3-D structures from 2-D plans, demonstrating enhanced spatial visualization and the ability to connect geometry to a tangible engineering task. The findings highlight the value of spatio-visual design activities in promoting skills like spatial reasoning, critical thinking, and problem-solving.

Cultivating Ethical Data Stewardship For Undergraduate Research: A Framework And Toolkit Duo, Wei Zakharov, Senay Purzer, Carla Zoltowski

Libraries Faculty and Staff Scholarship and Research

Data drives nearly every aspect of research today, from the earliest stages of problem definition to the final dissemination of results. Undergraduate students—often at the beginning of their research journeys—are increasingly working with complex, data-intensive projects. Yet many enter these environments without sufficient training in how to manage, share, and use data responsibly. They may know how to run code or analyze a dataset, but questions of ethics, reproducibility, preservation, and stewardship are rarely an explicit part of this preparation. To address this gap, our interdisciplinary research team at Purdue University launched a multi-year, NSF-funded project entitled Prioritizing Data Life …

Leveraging Undergraduate Expertise For Effective Stem Instruction: Insights From A Forensic Science Teaching Partnership, Swagata Sarkar, Hui-Hui Wang, Austin R. Jenkins, Mariah K. Stollar

Indiana STEM Education Conference

Although integrated science, technology, engineering, and mathematics (STEM) instruction has been cited as a viable instructional approach to increasing the number of students interested and prepared to enter the STEM workforce, teacher content knowledge can be a limiting factor to effective implementation (Ejiwale, 2013). To address this limitation, college STEM majors can use their content expertise to support the development and implementation of integrated STEM experiences for K-12 students (Ferrara et al., 2018). This research brief reports on a university-high school partnership where undergraduate students in a university forensic science club created and implemented integrated STEM lessons in a local …

Stem Education In Indiana: Analyzing The Availability Of Stem-Certified Schools For Underrepresented Communities, Bryan J. Duarte

Indiana STEM Education Conference

This study examines the equity of access to STEM-certified schools in Indiana, focusing on differences in student demographics between STEM-certified and non-STEM-certified schools. The results show no statistically significant differences in the percentage of female, non-White, or lower socio-economic students between the two groups. However, significant differences were found in the percentages of Latiné/a/o/x, Native Hawaiian or Pacific Islander, and Asian students, with these groups being underrepresented in STEM-certified schools compared to non-STEM-certified schools.

Boosting Computational Thinking In Integrated Stem Education With Cad, Hyeong Kyun Park, Jung Han, Yunjin Lim

Indiana STEM Education Conference

Integrated STEM education offers a powerful approach to enhancing students’ learning. By integrating science inquiry, technological literacy, engineering design, and mathematical thinking, integrated STEM fosters students’ 21st-century competencies, such as creativity, critical thinking, collaboration, and computational thinking. Drawing from a national integrated STEM project, this research uses a classroom case study to investigate the integration of Computer-Aided Design (CAD) and 3D printing into a STEM learning activity. It examines the use of mathematical computation to determine the best solution for a prototype that meet functional criteria. This research highlights how introducing CAD instruction enhances computational thinking within a conceptual framework …

Proceedings Of The Tenth Annual Indiana Stem Education Conference: Generational Advances Through Stem Education, William S. Walker Iii, Lynn A. Bryan, S Selcen Guzey

Indiana STEM Education Conference

The Proceedings of the Tenth Annual Indiana STEM Education Conference are edited by the Center for Advancing the Teaching and Learning of STEM (CATALYST, https://www.education.purdue.edu/catalyst/) at Purdue University. The theme for the 2025 conference is Generational Advances through STEM Education. This year’s conference provides opportunities to learn about effective STEM education strategies, curriculum, and resources to engage students by considering the advances and impact of STEM.

Ginger: The Effect Of Illustrated Storybooks On Children’S Response And Teachers’ Facilitation In Stem Education, Defne Yabas, Tugba Abanoz, M. Sencer Corlu

Indiana STEM Education Conference

This study aims to explore children’s and teachers’ responses to the integration of illustrated storybook content into STEM activities in early childhood. The correlation between STEM content and illustrations in children's storybooks conveying scientific information is a crucial aspect that can impact children's learning of STEM. Studies have reported the utilization of storybooks in STEM education for young children (Abanoz & Yabaş, 2022; Pantoya et al., 2015), yet an absence of research has been noted regarding the impact of illustrated storybooks on children's engagement in STEM education. There is substantial research evidence that early childhood teachers have low self-efficacy beliefs …

Informal Education Experiences: Why Stem Camps Matter, Jeffrey A. Nowak, Dale Ruppert

Indiana STEM Education Conference

This research brief details some of the positive impacts of student participation in after-school STEM (Science, Technology, Engineering, and Mathematics) camps provided by universities and informal education centers as described in published literature. In addition, the authors reviewed 2,841 anonymous participant surveys of 1^st-12^th grade students involved in nineteen STEM camps held at Purdue University Fort Wayne from 2019-2024 for related findings. Findings indicate that providing an enjoyable and enriching learning environment for STEM camps can foster a mindset of curiosity and a love for learning. Students who attend STEM camps likewise often experience a range of …

Mathematical Modeling For Interdisciplinary Stem Problem-Solving, Dayat Hidayat, Signe Kastberg

Indiana STEM Education Conference

STEM education supports students’ real-world problem solving by utilizing connections between STEM disciplines. Yet teachers have questions about how to provide such support. Mathematical modeling involves the use of mathematics content and processes to solve problems in integrated STEM contexts. In this research brief we illustrate how mathematical modeling can support students’ integrated STEM problem solving.

Ripples Of Change: Middle School Students Navigating The Future Of Our Watershed Through Eco-Stem, Elizabeth Andrew Thiel

Indiana STEM Education Conference

Ripples of Change is an eco-STEM unit designed to address Indiana’s environmental education goals by fostering environmental literacy and informed decision-making among middle school students. By engaging students in community-based learning activities that empower students to address watershed issues, this eco-STEM unit promotes culturally sustaining integrated STEM education. Preliminary findings indicate increased student awareness and responsibility for their impact on local ecosystems using evidence-based reasoning, highlighting the potential for Ripples of Change to inspire global citizenship in students and scalable eco-STEM approaches.

Leveraging Algebraic Thinking In Stem Education To Equip The Next Generation Of Problem Solvers, Asenath Odondi, Comfort Temitope Aje

Indiana STEM Education Conference

Algebraic thinking is a critical skill in mathematics education, involving pattern recognition, generalization, symbolic manipulation, and problem-solving. It is essential for success in STEM fields and should be developed throughout education, starting in early grades. This literature review synthesizes research on algebraic thinking, focusing on problem-based learning. The review indicates that incorporating algebraic thinking into problem-based learning with non-routine activities enhances students' understanding and real-world problem-solving in STEM.

Impacts Of Informal Stem Summer Camps On Middle School Student Stem Identity, Austin R. Jenkins, Joshua Faith, Steve Heinold

Indiana STEM Education Conference

Informal or out of school STEM spaces have been documented as sites of positive STEM identity development for youth historically marginalized in formal STEM spaces (Çolakoğlu et al., 2023). To increase the number of students who develop positive STEM identities during the critical juncture of middle school, Indiana GEAR UP offered summer camps to rising 7th and 8th grade students at selected middle schools across the state. Longitudinal interviews with students indicate the importance of informal STEM spaces, like summer camps, in fostering positive STEM identity development.

Innovative Stem Learning Through Solar Oven Design: Promoting Creativity And Teamwork In Stem Education, Humphrey Chinenye Ochulor, Abigail Erskine, Comfort Temitope Aje

Indiana STEM Education Conference

STEM education benefits significantly from integrating design-based learning (DBL) which fosters student creativity and teamwork. This research brief examines how solar oven design projects for K-12 students that involve DBL promote students' creative skills and teamwork. A literature review was done to investigate how solar oven design activities impacted student learning. Research has shown that students improve creativity and teamwork when these activities are carried out using DBL strategies.

The Influence Of Social Achievement Goals On Grit In Aviation Education, Austin T. Walden

Journal of Aviation/Aerospace Education & Research

Aviation students have multiple ways of persisting and persevering in their aviation education, and they do not learn in a vacuum. Their social goals may help explain why some aviation students show more grit than others in an aviation education environment. The study examined the relationship and predictive ability of social achievement goals (i.e., social development goal, social demonstration-approach goal, and social demonstration-avoid goal) to predict grit in an aviation education environment. The constructs of social achievement goals and grit have yet to be examined together in motivation research. This paper provides a new predictive model for using the two …

The Towering Inferno: Art, Policy, And Legacy, Charles R. Jennings

Publications and Research

The Christian Regenhard Center for Emergency Response Studies, leveraging the expertise of its faculty, staff, Advisory Board and colleagues, has consistently programmed activities focused on high-rise fire safety. The upcoming 50^th anniversary of the film The Towering Inferno was an inspiration.

We decided this would be more lighthearted and less purely technical than many of our events. We wanted to consider both the film, and use it to reflect on the state of fire safety in tall buildings in New York City.

Of course it does not escape us that the topic of fire safety is a serious one, …

Exploring The Stem Career Identity Development Of Black Women Across Their Lifespan, Veronica Hurd

Theses and Dissertations

Although STEM is the fastest-growing career sector, Black women are grossly underrepresented as they account for 2.5% of the workforce. Research highlights that this underrepresentation is due to racialized structures in K-12, postsecondary, and career settings that restrict Black girls’ and women’s STEM opportunities. While macrosystems such as hegemonic ideologies, attitudes, and social conditions shape Black girls’ and women’s opportunities in STEM, they continue to persist and achieve their career goals. To explore these barriers and Black women’s persistence in this industry, this study draws from the autobiographical memories of 10 Black women in the field or formerly in the …

Whipped Into Shape: Infrastructure As Punishment For The Unruly Citizen, Eliza Mortimer

Anthós

This article interrogates how inflexible designs and policies of airline seating, as well as critical socio-political rhetoric, discipline and marginalize bodies that do not conform to normative standards. Situating airline seating within fat and disability studies models, Mortimer argues that these punitive measures are not neutral, but rather reflective of cultural narratives of productivity, morality, and bodily discipline. Mortimer draws from ethnographic analyses of first-person accounts and policy reviews to demonstrate how shrinking seats, rigid policies, and moralized discourse construct a “space of calculability” that pressures fat individuals to monitor and minimize their bodies to justify their presence in public …

Predicting Crises On The African Frontier Stock Markets With Investor Sentiment Indicators: A Machine Learning Approach, David Korsah, Lord Mensah

Journal of International Technology and Information Management

This study examined the predictive ability of machine learning algorithms in identifying crises within African stock markets. The study employed seven distinct machine-learning models, analyzing historical stock prices from eight stock markets, three major sentiment indicators, and the exchange rates of local currencies against the US dollar, with each data spanning from May 1, 2007, to April 1, 2023. Extreme Gradient Boosting (XGBoost) emerged as the most effective algorithm for predicting crises. Historical stock prices and exchange rates were identified as the most critical features for prediction. On the sentiment side, investors’ perceptions of potential volatility on the S&P 500, …

Preventive Health Care Information Seeking Behaviors Among Baby Boomers In Taiwan, Alexander N. Chen, Michael J. Rubach, Tracy Suter, Hsin Ke Lu, Mark E. Mcmurtrey

Journal of International Technology and Information Management

Preventive health care is widely acknowledged as one of the most effective ways to reduce medical costs and enhance people's health. Preventive health care information (PHCI) is a crucial component. This study examines the PHCI-seeking behaviors of Taiwanese baby boomers. The study found some support for the idea that the preferred media used influenced the likelihood of Information seeking behavior. People with good health conditions were found to be more likely to seek PHCI, while people with greater health care needs sought out PHCI less frequently. The study examined social influences, which were found to be important. Three different types …

Pedagogy In The Age Of Ai: Exploring Generative Ai For Higher Education, Alison Munsch Phd

Journal of International Technology and Information Management

Generative Artificial Intelligence (AI) presents transformative opportunities for higher education, enabling personalized learning, enhanced student engagement, and efficient pedagogical practices. This tutorial-style article guides educators in integrating generative AI into their classrooms through hands-on activities, practical strategies, and reflective exercises. It explores the capabilities of AI tools such as ChatGPT, their applications across disciplines, and the ethical considerations for their use. By cultivating critical thinking and fostering student readiness for AI-driven futures, this article underscores the transformative potential of generative AI in higher education with an emphasis on the academic areas of business analytics, information systems, and computer science.

Surviving And Thriving In The Hybrid Cloud: A Review Of The Current Cloud Computing Landscape, Peter Munsch, Alison Munsch

Journal of International Technology and Information Management

Background and Purpose

Both academic and industry institutions have increasingly migrated essential services to public cloud providers (e.g., Microsoft, AWS, Google) with mixed outcomes. Some industry leaders attempted to fully replace their on-premises data centers with public cloud services, a move not advised without thorough performance and cost analyses (Potel, 2023). Despite some organizations pulling back from the “Cloud First” strategy, the public cloud services market continued to grow, with revenue increasing by approximately 20% year-over-year since 2020 and surpassing half a trillion dollars in 2022 (IDC Worldwide Semiannual Public Cloud Services Tracker, 2H 2022). Cloud technologists suggested that hybrid …

Predicting Global Healthcare Supply Chain Delays: A Machine Learning Approach Leveraging Country-Level Logistics Metrics, Jeevan Sai Gali, Nima Molavi, Sepideh Alavi

Journal of International Technology and Information Management

In global healthcare logistics, ensuring the timely delivery of medical commodities is critical, particularly in low- and middle-income countries characterized by infrastructural limitations and operational uncertainties. This research introduces an advanced, data-driven predictive framework designed to forecast delivery delays by synthesizing granular, internal shipment-level data from the USAID Global Health Supply Chain Program (GHSC-PSM) with external country-level logistics capabilities indicators derived from the World Bank’s Logistics Performance Index (LPI). Rather than relying on retrospective trend analyses, this study employs machine learning algorithms such as Random Forest, XGBoost, Support Vector Machines (SVM), and Multi-Layer Perceptron (MLP) to detect …

Firelog: An Open-Source, Low-Cost System For Temperature Logging During Wildland Fires With High Spatial And Temporal Resolution, Nipuna Chamara, Yufeng Ge, Sabrina E. Russo

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Measuring flame, air, and soil temperatures during wildland fires, including wildfires and controlled burns in land management contexts, is crucial for research and applications in fire ecology, safety, and management in a wide array of ecosystems, from grasslands to forests. However, open-source and commercial systems are needed for measuring and logging flame and air temperatures that are user-friendly, economical, modular, and customizable. This paper details the design, development, and validation of the FireLog system. Laboratory validation experiments demonstrated high measurement accuracy, with a minimum coefficient of determination (R2) of 0.98 and the highest observed root mean square error (RMSE) of …

Integrating Satellite-Based Precipitation Analysis: A Case Study In Norfolk, Virginia, Imiya M. Chathuranika, Dalya Ismael

Engineering Technology Faculty Publications

In many developing cities, the scarcity of adequate observed precipitation stations, due to constraints such as limited space, urban growth, and maintenance challenges, compromises data reliability. This study explores the use of satellite-based precipitation products (SbPPs) as a solution to supplement missing data over the long term, thereby enabling more accurate environmental analysis and decision-making. Specifically, the effectiveness of SbPPs in Norfolk, Virginia, is assessed by comparing them with observed precipitation data from Norfolk International Airport (NIA) using common bias adjustment methods. The study applies three different methods to correct biases caused by sensor limitations and calibration discrepancies and then …

A Review Of Infrared Thermography Applications For Civil Infrastructure, Prabal Shrestha, Onur Avci, Sahabeddin Rifai, Feras Abla, Michael Seek, Karl Barth, Udaya Halabe

Engineering Technology Faculty Publications

Civil infrastructure is continuously subject to aging and deterioration due to multiple factors, which lead to a decline in performance and impact structural health. Accumulated damage on structures increases operational costs and poses significant risks to public safety. Effective maintenance, repair, and rehabilitation strategies are needed to ensure civil infrastructure’s overall safety and reliability. Non-Destructive Evaluation (NDE) methods are utilized to assess latent damage and provide decision-makers with real-time information for mitigating hazards. Within the last decade, there has been a significant increase in the research and development of innovative NDE techniques to improve data processing and promote efficient and …

Leveraging Physiological Signal Activity And Self-Report Data To Assess Students’ Trust In “My Friendly Mind” App And Its Impact On Their Mental Health Knowledge: A Mixed-Method Phase 1 Clinical Trial Focusing On Depression And Attention Deficit Hyperactivity Disorder From Human Factors Standpoint., Yeganeh Shahsavar

Graduate Theses, Dissertations, and Problem Reports (ETD)

Mental health issues have become a significant global public health concern, especially among younger generations. The growing number of mental health challenges, combined with limited access to quality care, makes the problem even worse. Studies reveal that over 70% of individuals worldwide in need of mental health services do not receive appropriate care. Digital health technologies have the potential to enhance mental health services by making them more accessible and affordable. Despite the increasing popularity of mental health mobile applications (mHealth), there remains a lack of robust evidence of their effectiveness and the level of user trust, particularly in areas …

Factors Contributing To Fatalities In Helicopter Emergency Medical Service Accidents, Jenna Korentsides, Joseph R. Keebler, Mihhail Berezovski, Alex Chaparro

Publications

INTRODUCTION: T his study aimed to update and reinforce previous research on helicopter emergency medical service accidents in the United States. By investigating predictors of fatalities after helicopter emergency medical service crashes through the application of machine learning techniques, we updated existing data sets and sought to uncover patterns that traditional analysis might not reveal.

METHODS: Using the National Transportation Safety Board database, the authors analyzed a dataset of 267 helicopter emergency medical service accidents between 1991–2022. We first calculated fatalities odds ratios for each condition. We then plotted geospatial locations of all reported accidents. Finally, we used XGBoost regression …

Land Target Detection Algorithm In Remote Sensing Images Based On Deep Learning, Wenyi Hu, Xiaomeng Jiang, Jiawei Tian, Shitong Ye, Shan Liu

Electrical & Computer Engineering Faculty Publications

Remote sensing technology plays a crucial role across various sectors, such as meteorological monitoring, city planning, and natural resource exploration. A critical aspect of remote sensing image analysis is land target detection, which involves identifying and classifying land-based objects within satellite or aerial imagery. However, despite advancements in both traditional detection methods and deep-learning-based approaches, detecting land targets remains challenging, especially when dealing with small and rotated objects that are difficult to distinguish. To address these challenges, this study introduces an enhanced model, YOLOv5s-CACSD, which builds upon the YOLOv5s framework. Our model integrates the channel attention (CA) mechanism, CARAFE, and …

Simulated Efficiency Of A Modified Bmw I3 Traction Motor Operating As An Isolated Dc-Dc Converter, Shayne Taylor

Graduate Research Theses & Dissertations

Battery electric vehicles are currently fighting to have any advantage over internal combustion engine powered vehicles to reduce global transportation greenhouse gas emissions. Electric motors are typically deemed as the largest source of loss in many vehicles but have recently become more efficient on average than the AC-DC converter used to charge the vehicle. This paper investigates the potential for a dual three phase electric traction motor based on a BMW i3 electric vehicle traction motor to take the place of an isolated DC-DC converter, an important part of the AC-DC converter. This electric machine in simulations produced a similar …