University of Utah engineers have unveiled a lightweight, battery-powered hip “exoskeleton” that helps stroke survivors with hemiparesis walk more efficiently
PIC/UNIVERSITY OF UTAH
Exoskeleton cuts stroke rehabilitation period
University of Utah engineers have unveiled a lightweight, battery-powered hip “exoskeleton” that helps stroke survivors with hemiparesis walk more efficiently, cutting the energy cost of walking by nearly 20 per cent. Hemiparesis affects about 80 per cent of stroke survivors and often forces people to compensate with their stronger side, making walking slower, more painful, and riskier.
Study warns of surveillance via tyres
Pic/ISTOCK
Researchers at the IMDEA Networks Institute and European partners have warned that tyre pressure sensors in modern cars can be exploited for covert tracking, after a 10-week study captured signals from more than 20,000 vehicles. Most cars use a Tyre Pressure Monitoring System (TPMS) that wirelessly sends pressure data to the vehicle to flag underinflated tyres. The team found many sensors broadcast a fixed, unique ID in unencrypted signals, allowing anyone nearby with a basic radio receiver to recognise the same car repeatedly without line-of-sight. Unlike camera-based tracking, the radio messages can be collected through obstacles and from distances beyond 50 metres, including in parking areas and near buildings. The team noted that current cybersecurity rules do not cover TPMS.
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