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The Story within Lessons: Highlighting Moments of Student Inquiry
Get PDFThe curricular decisions of K-12 mathematics teachers affect student learning. One way to make sense of this is to find the story within the lesson. Writing the story of a lesson by identifying the plot, characters, settings, and actions reveals the questions that drive student mathematical curiosity and inquiry (Dietiker, 2015). Drawing attention to these moments provides a new perspective for teachers as they plan, teach, and reflect on their lessons and work to improve their instruction for their students as they see the possible advantages and disadvantages of the ordering of mathematical tasks. This work extends Dietiker’s thinking through writing the story of calculus lessons introducing the definite integral
Thinking With Algebra: Two Professors\u27 Perspectives
Get PDFThis research brief will share insights from using the curriculum, Thinking With Algebra (TWA), a National Science Foundation Project (DUE 2021414). The focus will be on the value of using this curriculum when working specifically with students who have taken Algebra I and Algebra II in high school, but were not prepared for college algebra or precalculus. This curriculum is specifically designed for STEM-track students who place below the level of college algebra when they enter college. The authors have found that TWA helps instructors honor the mathematical knowledge and ideas that students bring into the classroom. The curriculum units give instructors the freedom to choose the topics that suit their objectives. TWA also offers a variety of approaches to help students connect with mathematics in a new way. This brief will expand on these themes and report the benefits to students that the authors observed when teaching with this curriculum
Integrated STEM: Impact of Engineering Design and Computer Science in STEM Labs
Get PDFBy integrating physics laboratories with engineering design and computer science, students apply physics principles to ill-structured and complex problems, engage in knowledge transfer, and gain interest in STEM. The introductory physics labs at Purdue have been updated to include engineering design and computer science principles that ground physics in authentic problems. Integrated labs have been evaluated using student perception post-surveys, student course performance, interviews, and case-study observations. Preliminary results indicate that integrated physics labs promote transfer, enhanced metacognitive skills, student interest, and motivation
The Next-Gen Crop Nutrient Stress Identification with High-Precision Sensing Technology in Digital Agriculture
Get PDFCrop yields are facing significant losses from nutrient deficiencies. Over-fertilizing also has negative economic and environmental impacts. It is challenging to optimize fertilizing without an accurate diagnosis. Recently, plant phenotyping has demonstrated outstanding capabilities in estimating crop traits. As one of the leading technologies, LeafSpec, provides high-quality crop image data for improving phenotyping quality. In this study, novel algorithms are developed for LeafSpec to identify crop nutrient deficiencies more accurately. Combined with UAV system, this technology will bring growers a robust solution for fertilizing diagnosis and scientific crop management
Identifying Essential Genes for the Assembly and Function of Tails in Novel Myoviridae Bacteriophages
Get PDFA bacteriophage is a virus that infects bacterial hosts. They are typically composed of a head, a tail, and fibers on the tail that allow it to attach to the bacterial membrane. Myoviridae are a family of bacteriophage that are distinct for their short, contractile tails that undergo conformational changes when they attach to bacteria, which are essential to inject its genetic material into the cell. The purpose of this research is to utilize genetic sequencing and comparative genomics to identify the genes that allow for the tail structure, conformation change, and attachment in novel Myoviridae bacteriophages. In characterizing these genomes, patterns can be developed across viruses that can help further understand the mechanism through which bacterial infection occurs, which can be applied to healthcare, food safety, and more
Orature: The Political Interpretation of Performance Framework in \u3cem\u3eAnthills of the Savannah\u3c/em\u3e and \u3cem\u3eHalf of a Yellow Sun\u3c/em\u3e
Get PDFThe focus of discussion in this paper lies in a perception that orature of African written literature is not innocent but a form of control. Operated through its performance framework, the concept of orature provides an angle to observe how African oral tradition penetrates written literature and cultivates an awareness of the political nature both of the material to be written and of the writing process itself. This paper explores the performance framework in two African novels — Achebe’s Anthills of the Savannah and Adichie’s Half of a Yellow Sun. Through such key concepts as event, narrative and self-reflexivity in performance theory, readers can perceive how the spatiotemporal dimension and audience-performer relationship are manipulated and how the four realms of African orature are reflected in these two novels and thereby help decipher their specific political connotations. Achebe and Adichie’s writing practices have indeed created a new purpose for orature in Nigerian literature
Microlayer evaporation governs heat transfer enhancement during pool boiling from microstructured surfaces
Get PDFFish farming wastewater treatment using algae-cyanobacterial inocula
Get PDFFish is one of the most important nutrient sources of the human diet, and its low-cost aquaculture production is advantageous. During processing, large quantities of organic and inorganic nutrients are produced. Discharging fish farming wastewater to the environment without proper treatment can support harmful algal growth. Therefore, aquaculture effluent must be treated prior to discharge to the receiving waters. In this study, six different cyanobacteria and algae species, including Chlorococcumminutum, Porphyridiumcruentum, Chlorella vulgaris, Microcystis aeruginosa, Chlamydomonas reinhardtii, and Fischerellamuscicola were studiedto treatfish aquaculture wastewater, using mix-culture bacteria as the inoccolum. All samples were incubated for 21 days. Parameters such as chemical oxygen demand, dissolved organic and inorganic nitrogen species, and phosphate were measured weekly. Our results suggest that M. aeruginosa can reduce the inorganic nitrogen species (\u3e99%) in fish wastewater. Similarly, C. reinhardtiiwas able to remove chemical oxygen demand, dissolved organic nitrogen, a
Evaluating The Environmental Impacts of U.S. Historical Oil Spill Incidents
Get PDFThe adverse impacts of extremely large oil spill incidents such as Deepwater Horizon Oil Spill have been widely studied in recent years. Catastrophic oil spill disasters such as Deepwater Horizon Oil Spill have been widely studied. While vast smaller oil spills, which also could result in significant amount of oil release, still lack attention.
This research assessed distributions and environmental impacts caused by historical oil spill incidents in U.S. We first analyzed the spatial and temporal characteristics of oil spills. Then the relationship between spillage amount and spill frequency is evaluated via statistical approaches. Last, based on a thorough literature review of environmental, ecological, and economic impacts of oil spill, we proposed a framework to estimate the impact of oil spill incidents
The Association between Inflammatory Diet and Infection-Related Cancers in Adults: A Systematic Review
Get PDFPoster presented at the 2023 American Academy of Health Behavior conference. Presents preliminary results of a systematic review investigating the relationship between inflammatory dietary patterns and infection-related cancers in adults