Digital Commons Network^™

A Model Of The Use Of Evolutionary Trees (Muet) To Inform K-14 Biology Education, Yi Kong, Ankita Thawani, Trevor R. Anderson, Nancy Pelaez

PIBERG Publications

Evolutionary trees are powerful tools used in modern biological research, and also commonly used in textbooks and classroom instruction. Studies have shown that K-14 students have difficulties interpreting evolutionary trees. To improve student learning about this topic, it is essential to teach them how to understand and use trees like professional biologists. Unfortunately, few currently used teaching frameworks for evolution instruction are designed for this purpose. In this study we developed the Model of the Use of Evolutionary Trees (MUET), a conceptual model that characterizes how evolutionary trees were used by professional biologists as represented in their research publications. The …

Profiles Encouraged-Profiles For 10 Authors And/Or Interviewees And Educopia Institute

Against the Grain

No abstract provided.

Biz Of Acq-Deep Dive: Differentiated Ebook Usage Between Collection Types Across Disciplines, Michelle Flinchbaugh, Antje Mays

Against the Grain

No abstract provided.

Thermal Transport At The Nanoscale: A Fourier's Law Vs. Phonon Boltzmann Equation Study, Jan Kaiser, T. Feng, Jesse Maassen, X. Wang, X. Ruan, Mark S. Lundstrom

Other Nanotechnology Publications

Steady-state thermal transport in nanostructures with dimensions comparable to the phonon mean-free-path is examined. Both the case of contacts at different temperatures with no internal heat generation and contacts at the same temperature with internal heat generation are considered. Fourier’s Law results are compared to finite volume method solutions of the phonon Boltzmann equation in the gray approximation. When the boundary conditions are properly specified, results obtained using Fourier’s Law without modifying the bulk thermal conductivity are in essentially exact quantitative agreement with the phonon Boltzmann equation in the ballistic and diffusive limits. The errors between these two limits are …

Reading And Engineering: Elementary Students’ Co-Application Of Comprehension Strategies And Engineering Design Processes, Amy Wilson-Lopez, Stacie Gregory, Victor Larsen

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

For decades, researchers have asserted that K–12 teachers should embed reading comprehension instruction within each academic discipline, including ‘‘technical subjects’’ such as engineering. Recently, this assertion has become a source of controversy among researchers and practitioners who believe that time spent on teaching reading comprehension strategies may detract from time spent on more authentic activities such as engineering design. The purpose of this exploratory study was to investigate whether and how elementary students’ applications of comprehension strategies overlapped with their application of engineering design processes. The authors provided comprehension strategy instruction to 57 third- and fifth-grade students as they read …

Problem-Based Learning In Engineering Ethics Courses, Robert Kirkman

Interdisciplinary Journal of Problem-Based Learning

I describe the first stages of a process of design research in which I employ problem-based learning in a course in engineering ethics, which fulfills a requirement for students in engineering degree programs. The aim of the course is to foster development of particular cognitive skills contributing to moral imagination, a capacity to notice, respond to, and think about basic values in open-ended problem situations. In the course, groups of students develop their own problem situations based on their experience and expertise in engineering practice, then respond to those situations through a guided process of inquiry and problem solving designed …

Disciplinary Differences In Out-Of-School High School Science Experiences And Influence On Students’ Engineering Choices, Allison Godwin, Gerhard Sonnert, Philip M. Sadler

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

Participation from a variety of students is important to the long-term growth of the engineering field. Much of the research on engineering recruitment or career choice has focused on engineering as a whole, even though engineering disciplines are varied in student participation and focus. This work examines how students’ out-of-school interests and experiences in high school predict the likelihood of choosing a career in a particular engineering discipline. Out-of-school experiences offer more unstructured ways for students to meaningfully engage with science and engineering outside of the confines of the classroom. These experiences offer opportunities to spark particular science interests not …

The Relationship Between Project-Based Learning And Rigor In Stem-Focused High Schools, Julie Edmunds, Nina Arshavsky, Elizabeth Glennie, Karen Charles, Olivia Rice

Interdisciplinary Journal of Problem-Based Learning

Project-based learning (PjBL) is an approach often favored in STEM classrooms, yet some studies have shown that teachers struggle to implement it with academic rigor. This paper explores the relationship between PjBL and rigor in the classrooms of ten STEM-oriented high schools. Utilizing three different data sources reflecting three different perceptions—student surveys, teacher logs, and classroom observations—the study examines the extent to which PjBL and rigor co-occur. Across all three measures, the results show that use of PjBL is associated with higher levels of rigor. However, the study also shows that academic rigor can be present in the absence of …

Prediction Of Local Quality Of Protein Structure Models Considering Spatial Neighbors In Graphical Models., Woong Hee Shin, Xuejiao Kang, Jian Zhang, Daisuke Kihara

Department of Biological Sciences Faculty Publications

Protein tertiary structure prediction methods have matured in recent years. However, some proteins defy accurate prediction due to factors such as inadequate template structures. While existing model quality assessment methods predict global model quality relatively well, there is substantial room for improvement in local quality assessment, i.e. assessment of the error at each residue position in a model. Local quality is a very important information for practical applications of structure models such as interpreting/designing site-directed mutagenesis of proteins. We have developed a novel local quality assessment method for protein tertiary structure models. The method, named Graph-based Model Quality assessment method …

Characterizing Elementary Teachers’ Enactment Of High-Leverage Practices Through Engineering Design-Based Science Instruction, Brenda Capobianco, Jacqueline Delisi, Jeffrey Radloff

Purdue Center for Early Learning Faculty and Staff Publications

In an effort to document teachers’ enactments of new reform in science teaching, valid and scalable measures of science teaching using engineering design are needed. This study describes the development and testing of an approach for documenting and characterizing elementary science teachers’ multiday enactments of engineering design-based science teaching. Using the tenets of ambitious teaching, we explore how Grade 4 teachers utilized elements of high-leverage practices in an effort to teach science using engineering design. Data included 33 hours of classroom observations, semistructured interviews, and teacher reflections. Using lesson event, classroom organization, and instructional codes analogous to the literature on …

Physics Identity Promotes Alternative Careers For First-Generation College Students In Engineering, Dina Verdín, Allison Godwin

School of Engineering Education Graduate Student Series

This research study explored first-generation college students’ in engineering post-graduation career intentions based on responses to a quantitative survey. In this paper, we answer the following research questions: 1) How do first-generation college students’ measures of physics, mathematics, and engineering identity constructs differ compared to non-first-generation college students? and 2) How does a physics identity influence first-generation college student’s choice of an engineering major and career aspirations? The data came from the Intersectionality of Non- normative Identities in the Cultures of Engineering (InIce) survey. InIce was completed by 2,916 first-year engineering college students enrolled in four institutions across the United …

Quantifying And Assessing Trends On The National Science Foundation’S Broader Impact Criterion, Dina Verdín

School of Engineering Education Graduate Student Series

The American Innovation and Competitiveness Act (S.3084) reapproved the National Science Foundation’s (NSF) merit review criteria i.e. Intellectual Merit and Broader Impacts, called for an update of the policy guidelines for NSF staff members and merit review process participants, and emphasized the importance of transparency and accountability. Evaluating Project Summaries based on Intellectual Merit and Broader Impacts has been the standard of maintaining excellence and accountability since 1997. Intellectual merit consists of proposing activities that advance knowledge, while Broader Impacts statements, “describe the potential of the proposed activity to benefit society and contribute to the achievement of specific, desired societal …

Self-Similar Rupture Of Thin Films Of Power-Law Fluids On A Substrate, Vishrut Garg, Pritish M. Kamat, Christopher R. Anthony, Sumeet S. Thete, Osman Basaran

School of Chemical Engineering Faculty Publications

Thinning and rupture of a thin film of a power-law fluid on a solid substrate under the balance between destabilizing van der Waals pressure and stabilizing capillary pressure is analysed. In a power-law fluid, viscosity is not constant but is proportional to the deformation rate raised to the n−1" role="presentation" style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; font-variant: inherit; font-stretch: inherit; line-height: normal; font-family: inherit; vertical-align: baseline; display: inline; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;">n−1n−1 power, where 00n=1n=1 for a Newtonian fluid). In the …

Design Of Electrode Arrays For 3d Capacitance Tomography In Planar Domains, S Taylor

CTRC Research Publications

Electrode design is investigated for electrical capacitance tomography on a 1 mm-thick 3D planar domain. Arrays of square electrodes are located on both sides of the domain, which is filled with dielectric material. Anomalies of interest are voids in the material with low dielectric constant. Simulated tomography is conducted with various electrode patterns over a range of electrode sizes in order to compare performance. The high-aspect-ratio domain requires a large finite element mesh for simulating electric fields and for defining spatial sensitivity responses of electrode pairs. Compared to the canonical 2D pipe cross-section problem, this high-aspect-ratio system requires solving the …

Testing For Measurement Invariance In Engineering Identity Constructs For First-Generation College Students, Dina Verdín, Allison Godwin

School of Engineering Education Graduate Student Series

This work-in-progress research study examines the response patterns of first-generation college students (FGCS) to the engineering identity measures compared to non-first- generation college students (non-FGCS). This work answers the following research question, “Do FGC and non-FGC engineering students interpret the engineering identity measurement items in a conceptually different manner?” We explore if FGCS respond to engineering identity items similarly to non-FGCS and the fairness of using these instruments for FGCS to make claims about this group. The data for this work are from a survey instrument completed by 2,916 first-year engineering college students from four U.S. institutions. We hypothesize that …

Valveless Pumping: The Reflected Pulse Wave Hypothesis, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Working Papers

No abstract provided.

Case Study On The Two Individual Paradigms Of Education In A Manufacturing Quality Course, Rustin Webster, Matthew Turner

School of Engineering Technology Faculty Publications

This article provides a review of two paradigms of education and the application of each in a manufacturing quality control course for engineering technology (ET) students. The most common paradigm of education used in quality-focused courses is teaching-centered. This traditional method has contributed to students’ perception of quality (e.g., quality control, statistical process control, total quality management), as a dry subject to learn compared to other core and/or elective courses in their plans of study. This case study describes the creation and implementation of a manufacturing quality control curriculum that is learning centered. Based on student feedback, this approach increased …

Applying Authentic Learning Through Cultivation Of The Entrepreneurial Mindset In The Engineering Classroom, Lisa Bosman, Stephanie Fernhaber

Technology Leadership and Innovation Faculty Publications

Higher education provides plenty of opportunity for theory and in many cases, even the ability to apply theory in a laboratory setting. Yet, there remains limited opportunity for students to learn by doing through participation in authentic learning experiences. The purpose of this paper is to provide one potential solution for integrating authentic learning into the engineering classroom by cultivating the entrepreneurial mindset. As entrepreneurship serves as an integral part of the economy, developing an entrepreneurial mindset through authentic learning experiences is essential for engineers. While online discussion prompts represent a useful way for educators to facilitate student learning, less …

A Contemporary Citation Analysis Of Geography Education Journals: 2009–2015, Thom Gerrish, Donald Patrick Albert

Libraries Faculty and Staff Scholarship and Research

This study examined the flow of citations from 713 documents emanating from ten geography education journals from 2009 to 2011. The citations generated from these articles were tracked within and between this set of journals from 2009 through 2015. Our searches found 1,067 citations, or an average of 1.5 citations per article. After excluding self-citations, the remaining citations (33.6 percent) filtered out into other geography education journals and were classified into three groups: splash, wave, and ripple. Although the Journal of Geography in Higher Education generated the largest in-degree count, it shared the lead with the International Research in Geographical …

Trojaning Attack On Neural Networks, Yingqi Liu, Shiqing Ma, Yousra Aafer, Wen-Chuan Lee, Juan Zhai, Weihang Wang, Xiangyu Zhang

Department of Computer Science Technical Reports

No abstract provided.

Social And Latent Identities That Contribute To Diverse Students’ Belongingness In Engineering, Brianna Benedict, Dina Verdín, Allison Godwin, Thaddeus Milton

School of Engineering Education Graduate Student Series

This work-in-progress (WIP) research paper investigates contributing factors for how students describe what it means to be an engineer and what particular characteristics enable students to belong in engineering. We answer the research question, "What are the key contributing factors that influence how diverse students feel that they belong in engineering?" We used a semi-structured protocol to interview 12 diverse engineering students during Fall 2016 about their pathways into engineering, identities, and belongingness in engineering. The participants were selected from a pool of students who completed an attitudinal survey during Fall 2015 as a part of a larger study. They …

An Evaluation Of Flipped Courses In Electrical Engineering Technology Using Course Learning Outcomes And Student Course Assessments, M. Turner, Rustin Webster

School of Engineering Technology Faculty Publications

This paper describes the results of flipping two courses in an electrical engineering technology program with the objective of increasing student achievement and enthusiasm. Both an electromagnetics and electric power course were re-designed to utilize pre-class on-line videos in replace of live “chalk and talk” lectures, with a variety of active learning strategies implemented during class time, including discussion based learning, peer instruction, and group work. To evaluate the efficacy of the approach, assessment metrics tied to course learning outcomes from each class were compared under traditional and flipped conditions, as were student provided end of semester course evaluations. Additionally, …

Standards Resources For Engineering And Technology, Margaret Phillips, Sarah Huber

Libraries Faculty and Staff Scholarship and Research

This webliography is a selective compilation of the following: major standards bodies that create or approve standards frequently used by engineers and technologists, standards database aggregators, web sites that provide free or low cost, full-text access to standards, and standards education resources. Only major standards bodies that operate in the U.S. or on an international level are incorporated, excluding non-U.S. national and regional bodies that create or coordinate standards activities in other countries. The standards education resources listed are appropriate for university-level students. All of the resources included are English language web sites. Additionally, all of the resources included are …

Design And Pitch: Introducing Multiliteracies Through Scientific Research Posters, Sohui Lee, Russ E. Carpenter

The Writing Center Journal

No abstract provided.

Burroughs's Folios As An Archival Machine For Artistic Creation, Tomasz D. Stompor

CLCWeb: Comparative Literature and Culture

In his article "Burroughs's Folios as an Archival Machine for Artistic Creation" Tomasz D. Stompor discusses the significance of archival material as a scholarly resource for the analysis of William S. Burroughs's cut-up experiments. Stompor retraces the history of the author's filing system as both a referential repository and a device for documentation and investigates its function as an eperimental machine for the production of cut-up texts and layouts

Integrating Information Into The Engineering Design Process, Michael Fosmire, David Radcliffe

Purdue Information Literacy Handbooks

Engineering design is a fundamental problem-solving model used by the discipline. Effective problem-solving requires the ability to find and incorporate quality information sources. To teach courses in this area effectively, educators need to understand the information needs of engineers and engineering students and their information gathering habits. This book provides essential guidance for engineering faculty and librarians wishing to better integrate information competencies into their curricular offerings. The treatment of the subject matter is pragmatic, accessible, and engaging. Rather than focusing on specific resources or interfaces, the book adopts a process-driven approach that outlasts changing information technologies.

After several chapters …

Development Of A Problem-Based Learning Matrix For Data Collection, Shannon M. Sipes

Interdisciplinary Journal of Problem-Based Learning

Few of the papers published in journals and conference proceedings on problem-based learning (PBL) are empirical studies, and most of these use self-report as the measure of PBL (Beddoes, Jesiek, & Borrego, 2010). The current study provides a theoretically derived matrix for coding and classifying PBL that was objectively applied to official curriculum documentation in a content analysis. The results for the level of problem-based learning in two engineering program curricula are presented. By introducing such a matrix, this study offers a tool that can be applied by other scholars examining PBL, creating consistency in methodology, definitions, and language among …

‘‘Can I Drop It This Time?’’ Gender And Collaborative Group Dynamics In An Engineering Design-Based Afterschool Program, Jessica Schnittka, Christine Schnittka

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

The 21st century has brought an increasing demand for expertise in science, technology, engineering, and math (STEM). Although strides have been made towards increasing gender diversity in several of these disciplines, engineering remains primarily male dominated. In response, the U.S. educational system has attempted to make engineering curriculum more engaging, informative, and welcoming to girls. Specifically, project-based and design-based learning pedagogies promise to make engineering interesting and accessible for girls while enculturating them into the world of engineering and scientific inquiry. Outcomes for girls learning in these contexts have been mixed. The purpose of this study was to explore how …

Project-Based Learning And Design-Focused Projects To Motivate Secondary Mathematics Students, Kelly W. Remijan

Interdisciplinary Journal of Problem-Based Learning

This article illustrates how mathematics teachers can develop design-focused projects, related to project-based learning, to motivate secondary mathematics students. With first-hand experience as a secondary mathematics teacher, I provide a series of steps related to the engineering design process, which are helpful to teachers in developing design-focused projects, describe various projects that have been developed and implemented within my classroom, and share project artifacts illustrated by pictures, student work, and student comments. Referring to the MUSIC Model of Academic Motivation and reflecting upon personal observations, student outcomes, and student comments, I provide personal insight on how design-focused projects can be …

Interplanetary Mission Design With Applications To Guidance And Optimal Control Of Aero-Assisted Trajectories, Peter J. Edelman

Open Access Dissertations

A method for finding optimal aerogravity-assist tours of the solar system is developed using indirect methods. Two cost functionals are used in the optimization; finding the minimum required maximum lift-to-drag ratio, with and without a convective heating-rate path constraint, and the path which provides the minimum total stagnation point convective heat load. It is found that using present or near-future thermal protection system materials will suffice for certain aerogravity assist trajectories at Mars. Minimum heat load optimal trajectories are found for aerocapture maneuvers at Uranus and Neptune. With a large radius, and short rotational periods, atmospheric rotation must be taken …