Teachers were recruited through existing networks of mathematics teachers that the authors were members of, being mathematics teacher educators and professional developers. (citejournal.org)
It leverages the depth and experience of its global membership to tackle abuse on existing networks and new emerging services through technology, collaboration and public policy. (m3aawg.org)
In existing networks and computers, signals have to be converted back and forth from optical to electrical. (newscientist.com)