Digital Commons Network^™

Methods For Gis-Driven Airspace Management: Integrating Unmanned Aircraft Systems (Uass), Advanced Air Mobility (Aam), And Crewed Aircraft In The Nas, Ryan P. Case, Joseph P. Hupy

Aviation Technology Graduate Student Publications

The rapid growth of Unmanned Aircraft Systems (UASs) and Advanced Air Mobility (AAM) presents significant integration and safety challenges for the National Airspace System (NAS), often relying on disconnected Air Traffic Management (ATM) and Unmanned Aircraft System Traffic Management (UTM) practices that contribute to airspace incidents. This study evaluates Geographic Information Systems (GISs) as a unified, data-driven framework to enhance shared airspace safety and efficiency. A comprehensive, multi-phase methodology was developed using GIS (specifically Esri ArcGIS Pro) to integrate heterogeneous aviation data, including FAA aeronautical data, Automatic Dependent Surveillance–Broadcast (ADS-B) for crewed aircraft, and UAS Flight Records, necessitating detailed spatial–temporal …

Can I Be An Engineer? Factors Influencing Women’S Decisions To Pursue Undergraduate Engineering Studies In The Middle East And North Africa, Rasha Malaeb, Elsa Maalouf, Aya Mouallem, Jana Sabra

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

In the Middle East and North Africa (MENA), different institutional and cultural factors seemingly play a significant role in influencing women’s decisions to enroll in undergraduate engineering programs. In this work, we aim to uncover key influences that affect young women’s decisions to pursue undergraduate engineering studies in Lebanon, an Arab country in the MENA region. First, we conducted a survey during a student-led engineering summer program in 2024 at the Maroun Semaan Faculty of Engineering and Architecture at the American University of Beirut. The survey participants were 47 high school female students from diverse regions and backgrounds in Lebanon. …

Fostering Engineering Identities And Attitudes Through Place-Conscious Learning Introduction, Rebekah Hammack, Miracle Moonga, Nicholas Lux, Paul Gannon

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

Limited research focuses on how participating in place-conscious engineering affects students’ engineering identities and attitudes toward engineering. This explanatory sequential mixed methods study investigated the effect of engaging elementary school students in place-conscious engineering activities on their engineering identities and attitudes toward engineering. Twenty fourth grade students enrolled in a rural elementary school in the northwestern United States completed two place-conscious engineering activities: (1) after a local wildfire polluted the air with smoke and made it unhealthy for breathing, students designed and built air filters to prevent smoke from entering the homes of affected families residing in a nearby community, …

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 …

Humanizing Online Learning Through Culturally Responsive Pedagogy: Preserving Cultural Identity And Human Connection In Digital Spaces, Michael Mills

International Journal of Teaching and Learning in Higher Education

The rapid shift to online and hybrid learning environments has highlighted the need for culturally responsive pedagogical approaches in digital spaces. While much research has explored culturally responsive teaching in traditional classrooms, less attention has been paid to how these principles can be effectively translated to online learning environments. This article examines how culturally responsive pedagogy can be meaningfully integrated into online learning spaces through intentional course design, assessment practices, and community building. Drawing from existing literature on culturally responsive teaching, online learning, and digital equity, this paper provides a framework for educators to create more inclusive and culturally sustaining …

Enhancing Deep Learning And Workload Management In Online Education: The Power Of Scaffolded Weekly Assessments, Maryam Mohammad Zadeh, Rebecca Ferrari

International Journal of Teaching and Learning in Higher Education

This study investigates the use of scaffolded weekly assessments with individual feedback in promoting deep learning and managing workload among engineering students in online education. The research focuses on how these assessment strategies shape students’ learning approaches and workload distribution. The study involved the implementation of weekly assessments aligned with intended learning outcomes, complemented by personalized feedback. Data collection comprised student surveys and qualitative feedback to assess the impact on learning approaches and workload management. The qualitative results show that 91.9% of the students adopted deep learning, where only 8.1% engaging in surface learning. Students reported that this approach not …

Factors Impacting Elementary School Students’ Engineering Design And Optimization Decisions, Elaine Silva Mangiante, Ilana Haliwa

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

This mixed methods study explored possible factors that could impact elementary school students’ engineering design and optimization decisions. Data were collected from six teachers and 117 students in six fourth grade classrooms that implemented the Engineering is Elementary geotechnical engineering unit, A Stick in the Mud: Evaluating a Landscape. Students were to recommend to villagers their site decision of where to build a TarPul bridge based on four properties: soil type, villager preference, amount of compaction needed, and location less prone to erosion. Data sources included a pre-and post-assessment question, students’ documentation of property choices for their first and optimized …

“It Seems Like A Never-Ending Job”: Voices Of Female Caregivers Of Older Adults In The Rural Communities, Lalani Nasreen, Bhagyashree Katare, Evans Appiah Osei, Siqi Yang, Sampada Wagle, Julian L. Gallegos, Abidemi Mary Ajuwon

School of Nursing Faculty Publications

Background: Rural female caregivers of older adults face significant caregiving challenges that puts them at high risk for poor self-care and wellbeing. Limited studies have examined the self-care needs of caregivers from a gender equity and social perspective.

Objective: Our study aims to explore the self-care needs and preferences of rural female caregivers and underlying key processes contributing toward their health and well-being. Methods: A qualitative descriptive design was used for the study. A purposive sample of (n = 20) rural female caregivers was obtained. In-depth individual interviews were conducted for data collection. Each interview was about 45- 60 min …

General And Special Relativity May Explain The Hubble Tension And Galactic Rotation, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Working Papers

Using two equations from general and special relativity, one can explore the hypothesis that gravitational time dilation and the relativistic Doppler effect cause the Hubble tension. Predicted results show good agreement between theory and observation, as long as mass is restricted to ordinary baryonic matter. This unexpected finding suggested a surprising continuation, namely that observed galactic rotation also be explained by special relativity. This idea survived initial tests using both Vera Rubin’s original data and more recent observations.

The History Of Teaching Indonesian In The United States And Its Pedagogical Shift In The Late 20th Century, Eko Widianto, G.G. Weix, Michael Cullinane

Journal of Southeast Asian American Education and Advancement

The history of teaching Indonesian in the United States has received limited scholarly attention, despite the field's existence for over eighty years. This study traces its development and identifies three main phases. The first phase began during World War II, when Indonesian was taught primarily to meet military needs through a structural and drill-based approach. In the 1960s and 1970s, instruction was restructured to support academic research, with teaching materials and classroom practices aimed at developing reading skills and preparing students for fieldwork. From the late twentieth century onward, Indonesian programs increasingly adopted communicative approaches influenced by broader trends in …

A Treasure Hunt: The Interdisciplinary Challenge Of A Digital Humanities Hackathon, Marie Barras, Adélaïde Quenson, Adrien Jeanrenaud, Angela Allemand, Marina Berazategui, Levyn Bürki, Michel Capot, Simon Gabay, Vestin Hategekimana, Pauline Jacsont, Bokar Lamine N'Diaye, Elina Leblanc, Clara May, Anne-Laure Oberson, Margherita Parigini, Lara Pitteloud, Fassaleh Taal, Cédric Viaccoz

Artl@s Bulletin

Abstract: This article tells the story of an interdisciplinary hackathon emphasizing exploration, collaboration, and creative engagement with globalization-related cultural datasets. Participants worked in teams to produce research posters, which were then presented at the opening of the international conference Image Deluge & Globalization in Geneva. The article discusses three projects: one on 19th-century Spanish chapbooks using topic modeling and network analysis; another on leopard motifs in print imagery; and a third on olfactory heritage. The hackathon highlighted both the potential and the limitations of working with digital cultural data, offering insights into interdisciplinary methods.

Résumé: Cet article raconte un hackathon …

Mapping The Multifarious Image In Time Of Globalization, Anne-Laure Oberson

Artl@s Bulletin

Abstract: In this paper, I examine the evolving concept of the image, exploring the philosophical implications of its complex, multifaceted nature. I question the value of terms such as icon, simulacrum, and image in reference to Gilles Deleuze’s text Difference and Repetition. I argue for a pluralistic approach to understanding images as they embody more than a duality of visible-invisible dimensions. I seek to capture the multifariousness of the image to understand its transformative power. In conclusion, the paper suggests reevaluating image discourse to better engage with the evolution of its implications in a global context.

Résumé: Dans cet …

A Deluge Of Sea Images: Maritime Art And Temporal Crisis, Jonathan Stafford

Artl@s Bulletin

Abstract: We are today inundated with images of the sea, with maritime representations of global trade, the refugee crisis, and climate collapse featuring prominently in both journalistic and artistic image worlds alike. These seascapes seem to be possessed of a certain timeliness, speaking to the idiosyncratically temporal nature of our contemporary crisis. This article seeks to historicise the contemporary deluge of maritime imagery, drawing out its connections with the proliferation of the sea image in earlier representational regimes.

Résumé: Nous sommes aujourd’hui inondés d’images de la mer, les représentations maritimes du commerce mondial, de la crise des réfugiés et du …

Brute Force Branding: Variations & Repetitions Of The Almighty Dollar Banknote, Rui-Long Monico

Artl@s Bulletin

Abstract: This paper examines the U.S. dollar as a global brand and mythic icon, revealing how its stable aesthetic asserts dominance and infiltrates daily life. Through visual analysis and global comparison, it shows how banknotes are battlegrounds where art, identity, and geopolitics collide—currency as a weapon of soft power and cultural hegemony. The dollar’s visual inertia—ritualized, repeated, reappropriated—cements its supremacy as a symbolic force, where repetition enforces authority and variation sparks both resistance and conformity. Banknotes emerge as tools of statecraft and vessels of collective memory, as reflected in the author’s bespoke creation accompanying this study.

Résumé: Cet article analyse …

Image Circulations And Economic Imagination: Framing The Peruvian And Chilean Peripheries At The End Of The 19th Century, Alexandre Puche

Artl@s Bulletin

Abstract: This study explores two cases of photographic circulation between Peru, Chile and France in the late nineteenth century to show how images contributed to the requalification of the region within global commercial geography. It also proposes a historical methodology that considers visual repetition as a traceable product of transnational circulation. This approach sheds light on both certain mechanisms behind Atlantic propaganda regarding South America’s economic potential and the structuring role such circulations played in shaping regional representations.

Résumé: Cette étude examine deux cas de circulations photographiques entre le Pérou, le Chili et la France à la fin du XIXe …

Model-Based Investigation Of The Influence Of Environmental Conditions On The Energy Supply Of Multirotor Uavs, Morten Roßberg, Hanna Dibbern, Claudia Werner

Journal of Aviation Technology and Engineering

Flight time of unmanned aerial vehicles (UAVs) is limited by available energy, which is affected by the mission profile and external factors, such as environmental conditions. Two main environmental conditions that need to be considered are the impact of wind and ambient temperature on the UAV and its energy supply. The purpose of this study is to examine the effects of wind and ambient temperature to conduct a preliminary evaluation of flight performance and flight limitations. For this reason, three locations in the United States—New York City, Miami, and Fairbanks—are selected and the impact of the considered environmental conditions of …

Greenhouse Construction, Krishna Nemali

Purdue Extension Numbered Publications

Modern greenhouses do not resemble their hobby-scale 19th-century predecessors. Knowledge of construction requirements, location considerations, orientation, structural stability, etc., is vital. In this six-page publication, a Purdue University professor provides detailed, clear introductory knowledge about greenhouse construction.

Pitch Report: Purdue Ivy Tech Chips Evaluation Report, Jennifer Sdunzik

Evaluation and Learning Research Center Reports

The Purdue Ivy Tech CHips (PITCH) program is a university-industry-community partnership aimed at developing an educational pipeline capable of providing a qualified workforce for the growing semiconductor industry in the region. Increasing student interest in microelectronics, awareness of current and future microelectronics careers, and self-efficacy to pursue microelectronics opportunities are foundational to building the industry’s workforce. The PITCH program addressed these needs by offering a summer experience that introduced high school students to the semiconductor industry.

The PITCH leadership team engaged Purdue's Evaluation and Learning Research Center (ELRC) to (1) identify (short and longer-term) impacts of the summer program on …

Simplified Traffic Studies For Local Agencies, Laura Slusher

Indiana Local Technical Assistance Program (LTAP) Publications

Traffic studies are critical in the decision-making process for many transportation-related projects, funding requests, paving and plowing priorities, and in reporting to elected officials and the public. It is often difficult for local jurisdictions with limited equipment, staff, and time to perform these studies or have the funds available to hire them out. This handbook describes simplified procedures that are easy to apply and are written for all potential users.

Advancing The Iot4ag Agbridge Program Through Continuous Improvement Practices, Yury A. Kuleshov, Yaguang Zhang

Indiana STEM Education Conference

The authors are implementing improvements to the pilot AgBridge program. The AgBridge program is a mentorship program that brings together graduate students in engineering and/or engineering technology and education and matches them with educators in agriculture-related fields with support from faculty members and volunteers. Each team creates an educational product for use in a K-12 classroom, such as school curriculum focused on a research project. The program approach differs from a conventional post-secondary classroom, where students of different majors have minimal interaction with one another and have limited input from practitioners and/or industry professionals. The authors used feedback data to …

Proceedings Of The Eleventh Annual Indiana Stem Education Conference: Stem Journeys, William S. Walker Iii, S. Selcen Guzey

Indiana STEM Education Conference

The Proceedings of the Eleventh 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 2026 conference is STEM Journeys, celebrating the multiple pathways and experiences that advance student learning in STEM education.

Renewable Energy Innovation: A Mathematics-Driven Integrated Stem Approach For K-12 Classrooms, Humphrey Chinenye Ochulor, Dayat Hidayat

Indiana STEM Education Conference

This research brief presents Renewable Energy Innovation (REI) as a mathematics-driven Integrated STEM (iSTEM) approach for engaging upper elementary and middle school students to design, analyze, test, and refine solar cars and wind turbines through mathematical modeling (MM) and problem solving (PS). Research suggests that renewable energy activities support students’ abilities to design systems, quantify variables, construct multiple representations, and refine mathematical models to clarify relationships between energy output and design features. Positioning mathematics as the driver in REI iSTEM engineering design contexts aligns with the Common Core State Standards for Mathematics and foregrounds mathematics as a primary organizing discipline …

Optical Fibre Raman Spectroscopy: A Potential Novel Sensor System For Monitoring The Durability Of Concrete Structure, Yanfei Yue, Jingjing Wang, P. A. Muhammed Basheer, Yun Bai

International Conference on Durability of Concrete Structures

Concrete during its service lifetime, is exposed to and also interacts with the environment (such as CO2, SO42- & Cl-), which would trigger deterioration mechanisms and subsequent durability degradation. Recent decades have witnessed an increased worldwide interest in the development and application of built-in sensor networks for the purpose of continuous Structural Health Monitoring (SHM) of concrete structures. However, the existing sensors face some challenges such as the limited long-term stability and impossibility of recalibration of some optical fibre sensors. Raman spectroscopy is a vibrational technique, demonstrating unique advantages of ‘spectroscopic fingerprint’, fast response and nondestructive nature. During the past …

Stem Integration Through Environmental Data Analysis For Real-World Problem Solving, Abigail Erskine

Indiana STEM Education Conference

Integrating authentic, environmental-based data can make STEM instruction more meaningful. As part of a broader high school STEM curriculum, I designed a lesson that connects mathematical and statistical concepts, technology, and environmental data through environmental data analysis to develop real-world problem solving. Using local deer mortality data, I examined how descriptive statistics and data interpretation could reveal population and ecological patterns. Designing with real data highlighted how mathematics can serve as a lens for understanding environmental issues and promote connections across STEM disciplines. This research brief focuses on the instructional design and reflection as the lesson designer.

From Coursework To Research: A Scalable Model For Student-Industry Ai Collaboration, Hyeong Kyun Park, Andrew Joon Cha

Indiana STEM Education Conference

Preparing students for advanced technical careers requires more than foundational theory; it demands a shift to genuine research methodology. With the rising need for university-industry partnerships in AI innovation, this case study dissects a successful student-industry AI engineering collaboration project and transforms it into an essential preparation model easily adopted by technology personnel. The student participants include undergraduate and graduate engineering, data science, and computer science students working directly with practicing industry AI engineers. While universities publish most AI research and generate higher-novelty work, industry contributes state-of-the-art models, large datasets, and computational resources. Students gain research readiness, data literacy, and …

The Influence Of Teachers And Career Counselors Of Middle School Students' Interest In Pursuing Stem Careers, Damilola Ayokanmi, Paul Asunda

Indiana STEM Education Conference

At the front of every STEM classroom, teachers hold more than just textbooks, they hold the potential to shape students’ aspirations, confidence, and perceptions of what is possible in science, technology, engineering, and mathematics (STEM). Beyond teaching content, they nurture problem-solving skills and position STEM careers as attainable (Dare et al., 2021). Career counselors complement this work by providing career-related information, exposing students to STEM professions, and guiding them through academic pathways (Rottinghaus et al., 2018). Together, these educators form an essential support system influencing students’ early career awareness (Murcia et al., 2020). This ongoing qualitative study examines how teachers …

Centering Learners' Voices: Mapping As A Tool For Visuospatial Reasoning In Mathematics, Maria Eloisa C. Nuguid

Indiana STEM Education Conference

Visuospatial reasoning considers visual imagery and the dynamics of space rooted in learners’ lived experiences. Mapping is an example of a visuospatial task where learners interact with and represent their environment. The research focuses on children’s experiences with mapping tasks in the context of informal science, technology, engineering, art, and mathematics (STEAM) education.

Undergraduate Student Support Survey And Scoring Guide, Kerrie A. Douglas, Adrian Gentry, Julie P. Martin, Tiantian Li

School of Engineering Education Working Papers

No abstract provided.

Analysis Of Stem Activities At Preschool And Primary School Levels In The Usa's And Turkiye's Educational Reports Based On The Engineering Design Process, Cetin Kursat Bilir, Mehmet Fatih Öçal, Esra Yilmaz Bilir

Indiana STEM Education Conference

This comparative study examines STEM activities from preschool to grade 4 in the United States and Türkiye using the Engineering Design Process (EDP) framework. Five activities from each country were selected based on national standards (NGSS in the U.S.; Ministry of National Education STEM Standards in Türkiye). Using qualitative content analysis, we examined how each activity reflects the stages of the EDP. The findings highlight ways to strengthen STEM education through design-based learning and offer teachers practical insights for integrating engineering design into early education.