Digital Commons Network^™

The War In Ukraine, Food Security And The Role For Europe, Maksym Chepeliev, Maryla Maliszewska, Maria Filipa Seara E Pereira

Department of Agricultural Economics Faculty Publications

Food-security implications of the war in Ukraine are exacerbated by adverse weather events, spillover effects from the distortion of energy and fertiliser markets, and domestic policies that countries around the world have implemented in pursuit of food security. Estimates suggest that the cumulative effect of these channels in terms of restricting agricultural and food trade is in the order of over 10 times larger, and their cumulative effect on global food supply is on average three times more substantial than the direct agricultural supply disruptions in Ukraine. The latter, however, disproportionally impacts low-income countries that are particularly vulnerable to food …

Innovating Graduate Programming: Incorporating Writers' Ideas Into A Workshop Series, Vicki R. Kennell, Meghan Woolley

Purdue Writing Lab/Purdue OWL Presentations

This presentation shares the methods and results of a survey assessing graduate student needs for writing support. It presents the survey results around central themes of writing products, writing skills, the writing process, and feelings about writing, and then discusses how the presenters designed a 4-part workshop series for mid-stage graduate writers to fulfill their identified needs.

One Small Step For A Writing Center: Adapting To Reimagined Spaces, Jacqueline Borchert

Purdue Writing Lab/Purdue OWL Presentations

Due to innovations in higher education, writing centers are increasingly moving away from the stereotypical, make-shift classroom to a variety of innovative spaces. This presentation uses the stories and voices of the tutors whose experience and development are affected by space to acknowledge the dynamic shift many writing centers are undergoing. Within the context of one-to-one peer tutorials in spaces not owned by any individual campus unit, this presentation provides considerations to increase understanding of how these new spaces shape tutors’ interactions with people and the space itself.

Covid-19: Visualized Qualitative Aviation Research Themes, Chien-Tsung Lu, Huabo Sun

Journal of Aviation Technology and Engineering

The purpose of this study is to review pandemic-related publications that help the aviation industry cope with pandemic outbreaks like that of COVID-19. Published documents were searched and downloaded from academic libraries including Web of Science for a qualitative analysis. After the triangulation of publications for decisionmakers, and researchers, all important research clusters were visually generated based on the VOSviewer process. Some research clusters were further discussed for a thorough understanding of existing research perspectives. The result discovered that wearing a face mask and vaccination have been the two most effective means to counteract pandemic outbreaks. Additional findings were extracted …

Method For Estimating Pulsatile Wall Shear Stress From One-Dimensional Velocity Waveforms, Joseph C. Muskat, Charles F. Babbs, Craig J. Goergen, Vitaliy L. Rayz

Purdue University Libraries Open Access Publishing Fund

Wall shear stress (WSS)—a key regulator of endothelial function—is commonly estimated in vivo using simplified mathematical models based on Poiseuille's flow, assuming a quasi-steady parabolic velocity distribution, despite evidence that more rapidly time-varying, pulsatile blood flow during each cardiac cycle modulates flow-mediated dilation (FMD) in large arteries of healthy subjects. More exact and accurate models based on the well-established Womersley solution for rapidly changing blood flow have not been adopted clinically, potentially because the Womersley solution relies on the local pressure gradient, which is difficult to measure non-invasively. We have developed an open-source method for automatic reconstruction of unsteady, Womersley-derived …

Cartografías Cosmopolitas: León De Greiff Y La Tradición Literaria, Marco Ramírez Rojas

Purdue Studies in Romance Literatures

Cartografías cosmopolitas: León de Greiff y la tradición literaria analyzes the poetic works of this twentieth-century Colombian writer as a manifestation of cosmopolitanism, global cultural cartographies, and a self-fashioned poetic genealogy. Ramírez Rojas approaches de Greiff’s poems as cultural maps that reveal both a desire of connectivity with the world and a need for reorganizing the imaginary library of world literature. From a self-assumed position of eccentricity, de Greiff builds a network of global connections and disputes the binary division of cultural centers and peripheries, revendicating marginality as a productive condition. The study of this alternative cosmopolitanism brings de Greiff’s …

Transforming Leadership Pathways For Humanities Professionals In Higher Education, Roze Hentschell, Catherine E. Thomas

Navigating Careers in Higher Education Series

Transforming Leadership Pathways for Humanities Professionals in Higher Education includes thirteen essays from a variety of contributors investigating how humanities professionals grapple with the opportunities and challenges of leadership positions. Written by insiders sharing their lived experience, this collection provides an authentic look at the multiple roles humanities specialists play, as well as offers strategies for professional growth, sustenance, and satisfaction. The collection also considers the relationship between disciplinary areas of study, academic training, and the valuable skill sets and habits of mind that serve higher education leaders.

While Transforming Leadership Pathways emphasizes that a leadership route in higher education …

The Intersection Of Culturally Responsive Pedagogy And Engineering Design In Secondary Stem, Mariam Manuel, Jessica Gottlieb, Gina Svarovsky, Rebecca Hite

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

The instructional practices of the engineering design process and culturally responsive pedagogy have each garnered national attention and multiple decades of research. Findings from the respective literature bases call for educators and policymakers to integrate these two pedagogical approaches into K-12 classroom instruction. Scholars have argued that this integration would improve student engagement and academic achievement. There is a significant amount of research that supports the positive student outcomes associated with each approach, yet there remains a dearth of literature that addresses the integration of these two practices into the science and mathematics content areas. The movement around educational reform …

Congressional Oversight Of U.S. Government Programs, Bert Chapman

Libraries Faculty and Staff Presentations

Provides detailed overview of how the U.S. Congress conducts oversight of federal agency programs. Contents include a letter from a member of Congress to an agency head concerning an environmental development in Indiana, information on the foundations of congressional oversight, details on how Congress may require agency reports on various subjects in public laws, an example of a congressionally mandated report by the Department of Defense, documentation of congressional funding of individual federal agencies, examples of congressional committee hearings, congressional committee issuance of oversight and investigative reports which may include dissenting opinions, Congressional Budget Office cost estimates on congressional committee …

Writing Beyond Campus: Writing Centers In Service-Learning And Community-Engaged Scholarship, Jacqueline Borchert, Noah Patterson, Nathan C. Mcburnett

Purdue Writing Lab/Purdue OWL Presentations

This roundtable discussion serves as a forum for writing center professionals to discuss past experiences with and future opportunities for community-engaged work in our field. The lessons learned from this discussion will be used to both (1) identify strategic opportunities for engagement between writing labs and their respective communities and (2) inform the ongoing development of online resources for instructors and students who wish to integrate writing into current and future university-community work.

Method For Estimating Pulsatile Wall Shear Stress From One-Dimensional Velocity Waveforms, J.C. Muskat, Charles F. Babbs, C.J. Goergen, V.L. Rayz

Weldon School of Biomedical Engineering Faculty Publications

Wall shear stress (WSS)—a key regulator of endothelial function—is commonly estimated in vivo using simplified mathematical models based on Poiseuille's flow, assuming a quasi-steady parabolic velocity distribution, despite evidence that more rapidly time-varying, pulsatile blood flow during each cardiac cycle modulates flow-mediated dilation (FMD) in large arteries of healthy subjects. More exact and accurate models based on the well-established Womersley solution for rapidly changing blood flow have not been adopted clinically, potentially because the Womersley solution relies on the local pressure gradient, which is difficult to measure non-invasively. We have developed an open-source method for automatic reconstruction of unsteady, Womersley-derived …

Chatgpt Applications On Security Standards Selection And Future Ai Application Trends In Cybersecurity, Young B. Choi

KAUPA Letters

As the powers of Artificial Intelligence is growing dramatically these days, people started to think about the potential applications of AI tools such as ChatGPT and similar tools in various domains. This paper explores the functions of Chat GPT on security standards selection processes and will introduce a brief history of recent advancement of AI with outstanding issues and recent development directions of Artificial Intelligence.

Students As Partners In The Library: Creating Meaningful Information Literacy Instruction Together, Rachel Fundator, Samantha Legrand

Libraries Faculty and Staff Scholarship and Research

• In an effort to create more student-centered and inclusive learning environments, instructors are using pedagogical approaches, such as students-as-partners (SAP), to bring student voices into the conversation about teaching and learning and to invite students to make meaningful choices about what happens in the classroom (Cook-Sather et al., 2019). Libraries can and should explore ways to incorporate SAP into our offerings (Salisbury et al., 2020). In libraries, student partners can become co-creators of information as they develop goals and curricula and bring interdisciplinary perspectives from across the institution to the development of information literacy (IL) programs. By inviting students into …

Information Literacy As A Discipline: A New Lens For Information Literacy Practitioners, Karen Kaufmann, Clarence Maybee

Libraries Faculty and Staff Scholarship and Research

Presented at the AFC Learning Resources Committee Virtual Conference, this work spotlights a new lens for considering information literacy research and practice.

My Dialogue With Chatgpt, Semoon Chang

KAUPA Letters

No abstract provided.

Kaupa Letters: Volume 10, Issue 4, Korean American University Professors Association

KAUPA Letters

No abstract provided.

U.S. Government Information Resources For Accountability On U.S. Assistance To Ukraine, Bert Chapman

Libraries Faculty and Staff Presentations

Provides detailed coverage of U.S. Government information resources documenting accountability for U.S. civilian and military assistance to Ukraine. Includes U.S. laws, agencies involved in U.S. arms export policy, Defense Department resources and data, Defense Dept. Inspector General reports, Government Accountability Office reports, congressional committee hearings, a letter from a congressional committee to the Secretaries of Defense and State and U.S. Agency for International Development administrator, congressional debate, and congressional recorded votes.

A Comparison Of Airport Risks: Unmanned Aircraft Systems (Uas) Sightings, Wildlife Strikes, And Runway Incursions, Cheng Wang, Sarah M. Hubbard

Journal of Aviation Technology and Engineering

To provide a context for the potential threat of unmanned aircraft systems (UAS) sightings on airport operations, this paper compares the characteristics of UAS sightings with two common airport threats: wildlife strikes and runway incursions. This study analyzed over 60,000 events in a three-year period (September 2016 to August 2019), including 6,551 UAS sightings from the Federal Aviation Administration (FAA) UAS Sightings Report database, 47,574 wildlife strikes from the FAA Wildlife Strike database, and 6,041 runway incursions from the FAA Runway Safety database. The results suggest both similarities and differences among the airport threats. Both UAS sightings and wildlife strikes …

Safety Management Of Wildlife Hazards To Aviation: An Analysis Of Wildlife Strikes In Part 139 Airports In Florida 2011–2020, Tiago Dikerts De Tella, Flavio A. C. Mendonca

Journal of Aviation Technology and Engineering

Purpose: The purpose of this study was threefold: (1) to investigate wildlife strike reporting trends in Part 139 airports in the state of Florida (2011–2020); (2) to evaluate the existence of a difference in the rate of reported wildlife strikes between the seasons of the year (2011–2020); and (3) to develop information based upon the data analyzed that can be used for the safety management of wildlife hazards in Florida.
Design/methodology: The researchers in this study answered the research questions through the analyses, revision, and evaluation of existing wildlife strike and aircraft operations data. The data analyzed in this …

Dynamic Obstacle Avoidance For Usvs Using Cross-Domain Deep Reinforcement Learning And Neural Network Model Predictive Controller, Jianwen Li, Jalil Chavez-Galaviz, Kamyar Azizzadenesheli, Nina Mahmoudian

Purdue University Libraries Open Access Publishing Fund

This work presents a framework that allows Unmanned Surface Vehicles (USVs) to avoid dynamic obstacles through initial training on an Unmanned Ground Vehicle (UGV) and cross-domain retraining on a USV. This is achieved by integrating a Deep Reinforcement Learning (DRL) agent that generates high-level control commands and leveraging a neural network based model predictive controller (NN-MPC) to reach target waypoints and reject disturbances. A Deep Q Network (DQN) utilized in this framework is trained in a ground environment using a Turtlebot robot and retrained in a water environment using the BREAM USV in the Gazebo simulator to avoid dynamic obstacles. …

Mhealth Hyperspectral Learning For Instantaneous Spatiospectral Imaging Of Hemodynamics, Yuhyun Ji, Sang Mok Park, Semin Kwon, Jung Woo Leem, Vidhya Vijayakrishnan Nair, Yunjie Tong, Young L. Kim

Purdue University Libraries Open Access Publishing Fund

Hyperspectral imaging acquires data in both the spatial and frequency domains to offer abundant physical or biological information. However, conventional hyperspectral imaging has intrinsic limitations of bulky instruments, slow data acquisition rate, and spatiospectral trade-off. Here we introduce hyperspectral learning for snapshot hyperspectral imaging in which sampled hyperspectral data in a small subarea are incorporated into a learning algorithm to recover the hypercube. Hyperspectral learning exploits the idea that a photograph is more than merely a picture and contains detailed spectral information. A small sampling of hyperspectral data enables spectrally informed learning to recover a hypercube from a red–green–blue (RGB) …

When Therapy Dogs Provide Virtual Comfort: Exploring University Students’ Insights And Perspectives, Christine Yvette Tardif-Williams, John-Tyler Binfet, Freya L. L. Green, Renata P. S. Roma, Akshat Singal, Camille X. Rousseau, Rebecca J. P. Godard

People and Animals: The International Journal of Research and Practice

With the proliferation of canine-assisted interventions and the emphasis placed on the impact of these sessions in bolstering the well-being of visitors to sessions, especially university students, it can be easy to overlook just how participating in one of these sessions is experienced by participants. Capturing participants’ experiences is important as this holds the potential to inform program design and delivery and elucidate mechanisms within the intervention that were found to be especially efficacious. Forging new empirical terrain, this study explored the insights and perceptions of 469 undergraduate students who participated in a virtual canine-assisted stress-reduction intervention at a mid-size …

Emotional Depictions Of Dogs And Cats In Interactions With Humans In Picture Books, Juri Nakagawa, Naoko Koda

People and Animals: The International Journal of Research and Practice

This study quantitatively analyzed the depiction of dogs’ and cats’ emotions in picture books and discussed the effects on children’s recognition of real dog and cat emotions. The stories depicted many basic emotional depictions of interest, joy, and surprise in dogs and cats, whereas the humans in the stories showed more varied, complicated emotions. Interest was most often caused by familiar humans in dogs, and by objects in cats. Joy was most often caused by familiar humans in dogs and cats, which would lead child readers to recognize that dogs and cats are friendly toward humans. There were depictions of …

Expressed Willingness Of Stem Teachers To Teach Engineering, Zerrin Doganca Kucuk, Selvet Ece Genek, Hayriye Sinem Bozoglu, M. Sencer Corlu

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

Teaching engineering at the middle and high school levels has been a topic of discussion among scholars regarding the challenges it creates. One of the most critical challenges at the school level is identifying qualified teaching staff to lead engineering courses. The present study explored teachers’ willingness to lead an engineering course and the reasons behind their willingness or unwillingness to do so. The study involved 434 participants, who were enrolled in a STEM professional development program and were diverse regarding their teaching subjects, the grade levels they taught, and the locations of their schools in Turkey. In this mixed-methods …

Understanding The Impact Of Professional Development For A Cohort Of Teachers With Varying Prior Engineering Teaching Experience, Jennifer Kouo, Medha Dalal, Eunsil Lee, Bruk Berhane, Olushola Emiola-Owolabi, Jumoke Ladeji-Osias, Cheryl Beauchamp, Ken Reid, Stacy Klein-Gardner, Adam Carberry

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

Engineering for US All (e4usa) is a National Science Foundation-funded first-of-its-kind initiative aimed at making engineering more inclusive and accessible to underrepresented populations. The ‘‘for us all’’ mission of e4usa encompasses both students and teachers. Paramount to the success of e4usa was the construction of professional development (PD) experiences to prepare and support teachers with different levels of engineering teaching experience as they implemented the e4usa yearlong course. The perspectives of nine teachers with varying degrees of engineering teaching experience were examined during two PD opportunities to compare experiences and dynamics between the teachers. Data sources consisting of focus groups …

Hybrid Statistical And Machine Learning Methods For Daily Evapotranspiration Modeling, Erdem Kucuktopcu

Purdue University Libraries Open Access Publishing Fund

Machine learning (ML) models, including artificial neural networks (ANN), generalized neural regression networks (GRNN), and adaptive neuro-fuzzy interface systems (ANFIS), have received considerable attention for their ability to provide accurate predictions in various problem domains. However, these models may produce inconsistent results when solving linear problems. To overcome this limitation, this paper proposes hybridizations of ML and autoregressive integrated moving average (ARIMA) models to provide a more accurate and general forecasting model for evapotranspiration (ET0). The proposed models are developed and tested using daily ET0 data collected over 11 years (2010–2020) in the Samsun province of Türkiye. The results show …

Oppressive Authority: Dismantling, Reexamining, And Reconstructing Notions Of Authority In Information Literacy Instruction, Melissa Chomintra

Libraries Faculty and Staff Scholarship and Research

The following chapter examines ways knowledge authority structures can be oppressive in relation to information literacy instruction and discusses how librarians can implement equitable and inclusive pedagogy in their library instruction by dismantling, reexamining, and reconstructing notions of authority.

Comparing Self-Report Assessments And Scenario-Based Assessments Of Systems Thinking Competence, Kirsten A. Davis, Dustin Grote, Hesam Mahmoudi, Logan Perry, Navid Ghaffarzadegan, Jacob Grohs, Niyousha Hosseinichimeh, David B. Knight, Konstantinos Triantis

School of Engineering Education Faculty Publications

Self-report assessments are used frequently in higher education to assess a variety of constructs, including attitudes, opinions, knowledge, and competence. Systems thinking is an example of one competence often measured using self-report assessments where individuals answer several questions about their perceptions of their own skills, habits, or daily decisions. In this study, we define systems thinking as the ability to see the world as a complex interconnected system where different parts can influence each other, and the interrelationships determine system outcomes. An alternative, less-common, assessment approach is to measure skills directly by providing a scenario about an unstructured problem and …

Comprehensive Exploration Of Graphically Defined Reaction Spaces, Qiyuan Zhao, Sai Mahit Vaddadi, Michael Woulfe, Lawal A. Ogunfowora, Sanjay S. Garimella, Olexandr Isayev, Brett A. Savoie

Purdue University Libraries Open Access Publishing Fund

Existing reaction transition state (TS) databases are comparatively small and lack chemical diversity. Here, this data gap has been addressed using the concept of a graphically-defined model reaction to comprehensively characterize a reaction space associated with C, H, O, and N containing molecules with up to 10 heavy (non-hydrogen) atoms. The resulting dataset is composed of 176,992 organic reactions possessing at least one validated TS, activation energy, heat of reaction, reactant and product geometries, frequencies, and atom-mapping. For 33,032 reactions, more than one TS was discovered by conformational sampling, allowing conformational errors in TS prediction to be assessed. Data is …

Preparing For The Informed Workplace One Micro-Credential At A Time, Margaret Phillips, Heather Howard, Dave Zwicky, Fred Berry

Libraries Faculty and Staff Presentations

The modern workplace is a transdisciplinary, information-rich environment, and this makes information literacy skills vital for students. With this grant funded project, we are developing, piloting, assessing, and promoting a suite of micro-learning modules for undergraduate engineering, technology, and business students at a large, public university. The modules revolve around information literacy topics relevant to the workplace, integrated into a scalable micro-credentialing platform. The topics covered include (1) effective information gathering strategies, (2) competitive analysis, (3) patent information, (4) industry standards, and (5) informed communication. We, the module creators, take a broad view of information literacy, including gathering information from …