An official website of the United States government
Automated feedback can provide students with timely information about their writing, but students' willingness to engage meaningfully with the feedback to revise their writing may be influenced by their perceptions of its usefulness. We explored the factors that may have influenced 339, 8th-grade students’ perceptions of receiving automated feedback on their writing and whether their perceptions impacted their revisions and writing improvement. Using HLM and logistic regression analyses, we found that: 1) students with more positive perceptions of the automated feedback made revisions that resulted in significant improvements in their writing, and 2) students who received feedback indicating they included more important ideas in their essays had significantly higher perceptions of the usefulness of the feedback, but were significantly less likely to engage in substantive revisions. Implications and the importance of helping students evaluate and reflect on the feedback to make substantive revisions, no matter their initial feedback, are discussed
more »
« less
Fast radio bursts
Abstract Shami Chatterjee reviews fast radio bursts, focusing on the rapid recent progress in observations of these enigmatic events, our understanding of their central engines, and their use as probes of the intergalactic medium
more »
« less
- Award ID(s):
- 1815242
- PAR ID:
- 10303012
- Date Published:
- Journal Name:
- Astronomy & Geophysics
- Volume:
- 62
- Issue:
- 1
- ISSN:
- 1366-8781
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
More Like this
-
-
Barker, Megan K (Ed.)ABSTRACT Articulating clear and achievable expectations is fundamental to both education and organizational management. In this article, we provide a simple intervention for clarifying expectations–and establishing that these expectations have been understood–which proved beneficial both to community college interns and to their internship mentors in biotech-related undergraduate research experiences. Internship mentors were asked to utilize a simple Expectation Clarity Tool to outline the expectations, success metrics, baseline assessments, and training strategy and support that would be foundational to their intern’s project. These included expectations around conceptual, technical, performance, and professional skills and behaviors. Concurrently, but independently, community college interns were asked to complete the same type of exercise as a way of identifying gaps in their knowledge and understanding of their mentor’s expectations and their internship project. The mentor’s completed Expectation Clarity Tool was then shared with their intern. As a result of completing this relatively simple intervention, the majority of mentors reported that it increased their confidence as a mentor, taught them a new mentoring skill, changed how they will mentor trainees moving forward, and positively impacted their relationship with their trainee. On the intern side, the majority of interns reported that engaging in this intervention, both as an independent exercise and in obtaining their mentor’s completed Expectation Clarity Tool, increased their confidence as an intern and positively impacted the success of their internship.more » « less
-
Seventy-three students who enrolled in a senior-year level fluid mechanics course during spring semesters from 2019-2022 were asked about their perceptions on the impact in their professional preparation of a semester-long multidisciplinary service-learning assignment. This paper evaluates their current perceived impact of the assignment (long-term impact) and whether it might have changed from when they took the course (short-term impact). A survey was sent to all former students who went through the course and participated in the assignment, with a 61.64% return rate. The survey included questions about how well they remembered the assignment (some of the students were involved in it 4 years prior to completing this survey), the relevance of the project in terms of their professional preparation, how it impacted their collaboration skills, and whether their involvement affected their interest in participating in engineering outreach activities. To determine how their perceived impact of the project on their professional preparation has changed from when they took the class to now when they are working professionals, we compare their recent responses to the responses in reflections they completed while taking the course. The information gathered in the survey also provides a means to evaluate the effectiveness of the project and identify areas for improvement, which has implications for how similar projects might be designed and enacted in the future.more » « less
-
Planar magnetic microswimmers are well-suited for in vivo biomedical applications due to their cost-effective mass production through standard photolithography techniques. The precise control of their motion in diverse environments is a critical aspect of their application. This study demonstrates the control of these swimmers individually and as a swarm, exploring navigation through channels and showcasing their functional capabilities for future biomedical settings. We also introduce the capability of microswimmers for surface motion, complementing their traditional fluid-based propulsion and extending their functionality. Our research reveals that microswimmers with varying magnetization directions exhibit unique trajectory patterns, enabling complex swarm tasks. This study further delves into the behavior of these microswimmers in intricate environments, assessing their adaptability and potential for advanced applications. The findings suggest that these microswimmers could be pivotal in areas such as targeted drug delivery and precision medical procedures, marking significant progress in the biomedical and micro-robotic fields and offering new insights into their control and behavior in diverse environments.more » « less
-
Animals that move through complex habitats must frequently contend with obstacles in their path. Humans and other highly cognitive vertebrates avoid collisions by perceiving the relationship between the layout of their surroundings and the properties of their own body profile and action capacity. It is unknown whether insects, which have much smaller brains, possess such abilities. We used bumblebees, which vary widely in body size and regularly forage in dense vegetation, to investigate whether flying insects consider their own size when interacting with their surroundings. Bumblebees trained to fly in a tunnel were sporadically presented with an obstructing wall containing a gap that varied in width. Bees successfully flew through narrow gaps, even those that were much smaller than their wingspans, by first performing lateral scanning (side-to-side flights) to visually assess the aperture. Bees then reoriented their in-flight posture (i.e., yaw or heading angle) while passing through, minimizing their projected frontal width and mitigating collisions; in extreme cases, bees flew entirely sideways through the gap. Both the time that bees spent scanning during their approach and the extent to which they reoriented themselves to pass through the gap were determined not by the absolute size of the gap, but by the size of the gap relative to each bee’s own wingspan. Our findings suggest that, similar to humans and other vertebrates, flying bumblebees perceive the affordance of their surroundings relative their body size and form to navigate safely through complex environments.more » « less
- Free Publicly Accessible Full Text
-
Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1093/astrogeo/atab043
