Publications by authors named "Jon C Mitchell"
Article Synopsis
- Over two decades, initiatives have aimed to enhance STEM undergraduate outcomes, with the inclusive Research Education Community (iREC) emerging as a scalable reform model that supports STEM faculty in implementing course-based research to improve student learning.
- This study utilized pathway modeling to describe the HHMI Science Education Alliance (SEA) iREC, identifying how faculty engagement leads to sustainable adoption and improvement of new teaching strategies through feedback from over 100 participating faculty members.
- The findings indicate that iREC fosters a collaborative environment where STEM faculty can share expertise and data, thereby enhancing their teaching practices and contributing to the overall evolution of undergraduate science education.
Models of Classroom Assessment for Course-Based Research Experiences.
Front Educ (Lausanne)
November 2023
Course-based research pedagogy involves positioning students as contributors to authentic research projects as part of an engaging educational experience that promotes their learning and persistence in science. To develop a model for assessing and grading students engaged in this type of learning experience, the assessment aims and practices of a community of experienced course-based research instructors were collected and analyzed. This approach defines four aims of course-based research assessment - 1) Assessing Laboratory Work and Scientific Thinking; 2) Evaluating Mastery of Concepts, Quantitative Thinking and Skills; 3) Appraising Forms of Scientific Communication; and 4) Metacognition of Learning - along with a set of practices for each aim.
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- - The study investigates the implementation and educational benefits of course-based research experiences (CRE) in STEM education over three years, involving 102 instructors from the SEA-PHAGES program.
- - The research includes surveys and feedback sessions to understand instructors' perspectives on the goals and teaching practices of CRE, ultimately utilizing qualitative content analysis.
- - Findings reveal three instructional models for CRE teaching: 1) acting as a scientist and generating data, 2) teaching procedural knowledge, and 3) promoting project ownership, which help inform new instructors and institutions about effective CRE instruction.
Strains of Drosophila melanogaster with resistance to the insecticides spinosyn A, spinosad, and spinetoram were produced by chemical mutagenesis. These spinosyn-resistant strains were not cross-resistant to other insecticides. The two strains that were initially characterized were subsequently found to have mutations in the gene encoding the nicotinic acetylcholine receptor (nAChR) subunit Dalpha6.
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- Agricultural biotechnology faces challenges from inefficient methods like random mutagenesis and transgenesis, making plant trait engineering difficult.
- The study introduces designed zinc-finger nucleases (ZFNs) as a solution, enabling precise genome modifications in crops like Zea mays (corn).
- Using ZFNs, researchers successfully added a herbicide-tolerance gene to maize, demonstrating that these genetic changes can be reliably passed to future generations, paving the way for improved plant genetic manipulation in agriculture.
SUMMARY Quinoxyfen is a protectant fungicide which controls powdery mildew diseases by interfering with germination and/or appressorium formation. Mutants of barley powdery mildew, Blumeria graminis f.sp.
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