Individualized measurement of sweat loss under heat stress is important in assessing physical performance and preventing heat-related illness for athletes or individuals working in extreme environments. The objective of this work was to develop a low-cost and easy-to-fabricate wearable sensor that enables accurate real-time measurement of sweat rate. A capacitive-type sensor was fabricated from two conducting parallel plates, plastic insulating layers, and a central microfluidic channel formed by laser cutting a plastic film. The device has no microfabricated electrodes and is assembled using adhesive tape. Sensor accuracy was validated at different flow rates and confirmed using an equivalent circuit model of the device. On-body measurements demonstrate the feasibility of real-time measurements and show good agreement with values determined from a conventional sweat collection device.
In this paper, we seek to inform policy regarding the professional development of teachers of students who are learning English. To do this, we employ a framework that considers the pedagogical knowledge, practical teaching skills, and dispositions recommended by PD researchers and ELL teacher educators. We then present an approach that incorporates recommended teacher practices, dispositions, and types of knowledge that we call TRANSLATE, or Teaching Reading And New Strategic Language Approaches to English learners. We argue that translating carefully selected portions of grade‐level appropriate text has the potential to improve the English reading comprehension of ELLs. We illustrate this approach by highlighting how one of our research team's instructors was able to incorporate ELL students' linguistic expertise into their guided reading of a text so that they could engage in the kinds of metacognitive and metalinguistic behavior known to foster reading comprehension.
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