Digital Commons Network^™

Physical Constraints On Accuracy And Persistence During Breast Cancer Cell Chemotaxis, Julien Varennes, Hye-Ran Moon, Soutick Saha, Andrew Mugler, Bumsoo Han

Purdue University Libraries Open Access Publishing Fund

Directed cell motion in response to an external chemical gradient occurs in many biological phenomena such as wound healing, angiogenesis, and cancer metastasis. Chemotaxis is often characterized by the accuracy, persistence, and speed of cell motion, but whether any of these quantities is physically constrained by the others is poorly understood. Using a combination of theory, simulations, and 3D chemotaxis assays on single metastatic breast cancer cells, we investigate the links among these different aspects of chemotactic performance. In particular, we observe in both experiments and simulations that the chemotactic accuracy, but not the persistence or speed, increases with the …

Scaling Agricultural Mechanization World-Wide, The Case Of The 2-Wheel Tractor (2wt), Lennart Woltering, Tim Krupnik, Jelle Van Loon, Frederic Baudron

Scale Up Conference

No abstract provided.

A Tool For Assessing And Improving The Scaling Potential Of Agricultural Technologies, Larry Cooley

Scale Up Conference

No abstract provided.

The Scaling Scan: A Practical Tool To Determine The Potential To Scale, Floortje Jacobs, Lennart Woltering

Scale Up Conference

No abstract provided.

Orange-Fleshed Sweet Potato Drinks Commercialization Towards A Healthy Population, Nigeria, L. A. Onyegbulam, C. Aniedu

Scale Up Conference

No abstract provided.

A Field-Tested, Low-Cost, Locally-Produced, Multi-Crop Thresher, Kerry Clark, Gabriel Abdulai

Scale Up Conference

No abstract provided.

Production And Marketing Of Horticultural Seeds And Seedling Of Africa Indigenous Vegetables And Fruits In Benin, A. Chaldia Odette Agossou, Lys Amanvi Aglinglo, Aristide C. Houdegbe, Dedeou A. Tchokponhoue

Scale Up Conference

No abstract provided.

Determinants Of The Involvement Of Extension Agents In The Dissemination Of Climate Smart Agriculture Initiatives: Implication For Scaling Up, T. O. Olorunfemi, O. D. Olorunfemi, O. I. Oladele

Scale Up Conference

No abstract provided.

The Purdue Utility Project: Transportation And Power Solutions For Africa, David Wilson, John Lumkes

Scale Up Conference

No abstract provided.

Willingness To Pay For Maize Moisture Detection Devises In Kenya, Hira Channa, Jacob Rickergilbert, Hugo De Groote, Jonathan Bauchet

Scale Up Conference

No abstract provided.

Scaling Up Food Security Innovations: Lessons From The Canadian International Food Security Research Fund, Helena Shilomboleni, Renaud Deplaen

Scale Up Conference

No abstract provided.

P-Solubilizing Inoculants, Heather Pasley

Scale Up Conference

No abstract provided.

Drycard™, Anthony Phan

Scale Up Conference

No abstract provided.

Transforming Cassava Peel Into High Quality Animal Feed Ingredients, I Okike, P Kulakow, R Ofei, S Wigboldus

Scale Up Conference

No abstract provided.

New Tools For Maize Lethal Necrosis Virus In Africa: Cimmyt And Corteva Agriscience Collaborate On Plant Breeding Innovations, Mark Jung, Alyssa Deleon, Victor Llaca, Kevin Fengler, Bob Meeley, Kevin Simcox, Jan Schulze, Michael Olsen, Ann Murithi, Kanwarpal Dhugga, Kevin Pixley, Jim Gaffney

Scale Up Conference

No abstract provided.

Renewal And Delivery Of Spatially Explicit Soils Information In Western Kenya, Joshua O. Minai, Darrell G. Schulze, Mercy W. Ngunjiri

Scale Up Conference

No abstract provided.

Do Improved Drying And Storage Practices Reduce Aflatoxin Contamination In Stored Maize? Experimental Evidence From Smallholders In Southern Senegal, Stacy Prieto, Jonathan Bauchet, Jacob Rickergilbert

Scale Up Conference

No abstract provided.

Youth Mainstreaming In Climate Smart Agriculture As A Means To Achieving Zero Hunger In African By 2025, Divine Ntiokam

Scale Up Conference

No abstract provided.

Scale Up Sourcebook, Larry Cooley, Julie Howard

Scale Up Conference

The Scale Up Sourcebook is informed and inspired by the September 2018 conference, Innovations in Agriculture: Scaling Up to Reach Millions, organized by Purdue University, in partnership with the African Development Bank. The Sourcebook consolidates, extends, and disseminates some of the scaling insights presented at the Purdue conference. It is intended as an easy-to-use guidebook targeted to a broad and diverse audience of stakeholders associated with scaling agricultural technologies and innovations to meet the needs of the world’s poor. The Sourcebook has nine chapters: designing with scale in mind; assessing scalability; using commercial markets to drive scaling; financing the …

The Relationship Between Engineering Identity And Belongingness On Certainty Of Majoring In Engineering For First-Generation College Students, Dina Verdín, Allison Godwin

School of Engineering Education Graduate Student Series

This paper seeks to understand the factors that support first-generation college students’ certainty of majoring in engineering. Data used in this study came from thirty-two four-year ABET- accredited institutions across the United States which has a total sample of 790 first-generation college students. We used the frameworks of engineering role identity and sense of belonging to understand the factors that influence first-generation college students’ certainty of majoring in engineering. Certainty is referred to as the degree of confidence or decisiveness an individual has with regard to their chosen occupational plans. First, we examine how first-generation college students’ engineering role identity …

Safety–Performance Management In Extreme Sports? A Situated Analysis In Spearfishing Activity, Aude Villemain, Willy Buchmann

Journal of Human Performance in Extreme Environments

The aim of this research is to understand safety–performance articulation in spearfishing through the study of the global, specific, and temporal organization of an elite free diver’s activity. Three kinds of data were collected: diary reports, ten elicitation interviews on spearfishing, and two self-confrontation interviews on successful and failed apneas. The results indicated (1) the spearfisher’s global organization during the spearfishing set, (2) the alternation of intentions during apnea and periods of stabilization, (3) harmony with the environment, and (4) the strategy of keeping pace with the fish. The article will discuss the specific competence development needed to manage the …

General Aviation Hypoxia And Reporting Statistics, Timothy Holt, Jacqueline Luedtke, Jennah Perry, Michelle Hight, Claire Schindler, Pamela Ward

Journal of Aviation Technology and Engineering

Hypoxia is defined as a lack of oxygen throughout the body, which can be caused by several factors at any altitude. General aviation (GA) pilots may argue that most GA aircraft cannot attain the required altitudes where one might be more affected by hypoxia, but it is exactly that attitude that may makes pilots more susceptible to hypoxia. The impact of this hazardous attitude is even more apparent if one considers that out of the 590,038 certificated pilots in the USA, a little over 30% of them are GA pilots (FAA, 2015). The problem is that unlike airline pilots or …

Patents & Information Literacy, Dave Zwicky

Libraries Faculty and Staff Supplemental Materials

The ACRL Framework is an attempt to define information literacy using six threshold concepts. Patents could be a vehicle for addressing those concepts with STEM audiences.

Underground Environment Aware Mimo Design Using Transmit And Receive Beamforming In Internet Of Underground Things, Abdul Salam

Faculty Publications

In underground (UG) multiple-input and multiple-output (MIMO), the transmit beamforming is used to focus energy in the desired direction. There are three different paths in the underground soil medium through which the waves propagates to reach at the receiver. When the UG receiver receives a desired data stream only from the desired path, then the UG MIMO channel becomes three path (lateral, direct, and reflected) interference channel. Accordingly, the capacity region of the UG MIMO three path interference channel and degrees of freedom (multiplexing gain of this MIMO channel requires careful modeling). Therefore, expressions are required derived the degrees of …

Le Personnel Est Politique: Médias, Esthétique Et Politique De L’Autofiction Chez Christine Angot, Chloé Delaume Et Nelly Arcan, Mercédès Baillargeon

Purdue University Press Book Previews

Regardant les questions de témoignage, de confession, de traumatisme, de sexualité et de violence dans les œuvres (semi-)autobiographiques, ce livre explore la co-construction d’identités personnelles et collectives par des femmes écrivains à l’ère des médias et de l’autoreprésentation. À une époque où la littérature française est souvent accusée d'être égocentrique et trop narcissique, Mercédès Baillargeon avance que l’autofiction des femmes a été reçue avec controverse depuis le tournant du millénaire parce qu’elle perturbe les idées reçues à propos des identités nationale, de genre et de race, et parce qu’elle questionne la distinction entre fiction et autobiographie. En effet, ces écrivaines …

(Poster) A Bird's-Eye View Of What Learners Like And Dislike About Stem Moocs Using Topic Modeling, Abigail Gentry

ASEE IL-IN Section Conference

Massive Open Online Courses (MOOCs) are offered for many different subject areas such as STEM, Arts, Medicine, and Business, with differences in each subject area. In this study, we focus on STEM MOOCs and their unique challenges. In order to design better MOOCs to encourage engagement, it is important to understand learners expectations and preferences based on the subject area by analyzing end-of-course evaluation surveys of STEM MOOCs. We analyzed open-ended learner feedback for two post-survey questions for 110 unique STEM MOOCs (some with multiple re-runs) with a total of 8100 responses, offered on the FutureLearn platform. The end-of-course survey …

(Poster) Freshman Engineering Student Engagement Through Sport’S Data Analytics, Adam Tennant

ASEE IL-IN Section Conference

Instructors of engineering for the last quarter of a century have attempted to engage undergraduates through project based learning. Often these topics can fall short due to a lack of interest by the students. Faculty-lead student research experiences addressing pop-culture topics of interest can often stimulate student engagement and have the possibility to positively impact student-retention rates. This presentation reports on the preliminary findings of a sport’s data analytics approach for faculty-led student investigations and increased engagement. Freshman engineering students will rank teams or individuals through the PageRank algorithm creating a model of the complexity of sports. The specifics of …

(Poster) Design Of An Extruder Cooling Line, Timothy Jenkins, Logan Dorgelo

ASEE IL-IN Section Conference

Extruder Cooling Line

Authors

Affiliations

Trine University’s School of Engineering and Technology offers a plastics minor with an assortment of machines and tools for the students to gain experience using in a lab environment. One machine is a plastic extruder that mixes polymer pellets and any filler the students wish to add and extrudes the hot material through a die forming a 2D profile part. The current setup has no cooling unit at the die end, so when the hot plastic is extruded it falls straight down into a five gallon plastic bucket where the material coils and sticks together …

(Poster) Deepening Engineering Design Experience: A Novel Approach To Senior Design, Donald Peterson, Mansour Tahernezhadi, Abul Azad

ASEE IL-IN Section Conference

This poster advances a new framework for the senior design course in order to deepen engineering design experience for engineering students. The proposed framework for the new senior design course while retains the traditional topics such as problem identification, conceptual design and analysis, prototyping and the preparation of a work schedule required to carry out the project, it fosters an early in the cycle start, typically after week 6, towards the design conceptualization and prototyping in the first academic semester. This is in stark contrast with traditional practices where the design conceptualization and prototyping largely takes place in the second …

Geoannotator: A Collaborative Semi-Automatic Platform For Constructing Geo-Annotated Text Corpora, Morteza Karimzadeh, Alan M. Maceachren

Purdue University Libraries Open Access Publishing Fund

Ground-truth datasets are essential for the training and evaluation of any automated algorithm. As such, gold-standard annotated corpora underlie most advances in natural language processing (NLP). However, only a few relatively small (geo-)annotated datasets are available for geoparsing, i.e., the automatic recognition and geolocation of place references in unstructured text. The creation of geoparsing corpora that include both the recognition of place names in text and matching of those names to toponyms in a geographic gazetteer (a process we call geo-annotation), is a laborious, time-consuming and expensive task. The field lacks efficient geo-annotation tools to support corpus building and lacks …