Your rental kayak guide will come equipped with a VHF radio and a complete kit of various emergency signal devices, a tool kit, local navigation chart and other navigation aids, and lots of specialized knowledge. (sea-quest-kayak.com)
Search - and - rescue operations at sea could also be jeopardized by the gap, because JPSS includes a crucial sensor that listens for emergency signals sent by emergency beacons. (sciencemag.org)
Pockets within the tumor become deprived and send emergency signals for new vessel growth, a process called angiogenesis. (sciencenews.org)