This study examined the effects of behavioral skills training (BST) on teachers' implementation fidelity of a reading racetrack (a board game designed to increase sight word fluency) with elementary students identified as struggling readers. BST, an alternative to traditional professional development, is a performance-based protocol incorporating instruction, modeling, rehearsal, and feedback. A multiple probe design across teacher-student dyads demonstrated that BST was functionally related to the teachers' implementation of a reading racetrack with 100% fidelity on at least three consecutive sessions. Additionally, students met mastery criteria for sight word acquisition and demonstrated maintenance at least one to two weeks post intervention.
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http://dx.doi.org/10.1353/etc.2019.0018 | DOI Listing |
Nano Lett
December 2024
Dept. of Electrical and Computer Engineering, University of Texas at Austin, Austin, Texas 78712, United States.
The rich dynamics of magnetic materials makes them promising candidates for neural networks that, like the brain, take advantage of dynamical behaviors to efficiently compute. Here, we experimentally show that integrate-and-fire neurons can be achieved using a magnetic nanodevice consisting of a domain wall racetrack and magnetic tunnel junctions in a way that has reliable, continuous operation over many cycles. We demonstrate the domain propagation in the domain wall racetrack (integration), reading using a magnetic tunnel junction (fire), and reset as the domain is ejected from the racetrack with over 100 continuous cycles.
View Article and Find Full Text PDFACS Nano
June 2024
Max Planck Institute for Microstructure Physics, D-06120 Halle (Saale), Germany.
Nanoscopic magnetic domain walls (DWs), via their absence or presence, enable highly interesting binary data bits. The current-controlled, high-speed, synchronous motion of sequences of chiral DWs in magnetic nanoconduits induced by current pulses makes possible high-performance spintronic memory and logic devices. The closer the spacing between neighboring DWs in an individual conduit or nanowire, the higher the data density of the device, but at the same time, the more difficult it is to read the bits.
View Article and Find Full Text PDFNano Lett
October 2023
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
Racetrack memories with magnetic skyrmions have recently been proposed as a promising storage technology. To be appealing, several challenges must still be faced for the deterministic generation of skyrmions, their high-fidelity transfer, and accurate reading. Here, we realize the first proof-of-concept of a 9-bit skyrmion racetrack memory with all-electrical controllable functionalities implemented in the same device.
View Article and Find Full Text PDFAn unremarkable photograph of a grandstand offers insight into how horse racetrack planners thought about audiences, venues, and documentation. Accounting for not only what the photograph reveals but also how it acts as a specific kind of historical evidence, shows how the history of technology can be enriched by further considering photographic and other kinds of visual and nontextual primary sources.
View Article and Find Full Text PDFNanoscale Adv
March 2022
School of Optical and Electronic Information, Huazhong University of Science and Technology Wuhan 430074 China
Racetrack memory with the advantages of small size and high reading speed is proposed based on current-induced domain wall (DW) motion in a ferromagnetic (FM) nanowire. Walker breakdown that restricts the enhancement of DW velocity in a single FM nanowire can be depressed by inter-wire magnetostatic coupling in a double FM nanowire system. However, this magnetostatic coupling also limits the working current density in a small range.
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