Radio Use of Urban-Agricultural Public Service Announcements

Suicide prevention public service announcements: perceptions of young adults.

BACKGROUND Determining optimal methods for preventing suicide continues to be an elusive goal. AIMS The study examines benefits and possible untoward effects of public service announcements (PSAs) for young adults. METHODS Young adult participants (N = 279) were randomly assigned to one of three conditions: (a) a billboard simulation, (b) a 30-s TV ad simulation, and (c) a no-information co...

Anti-Drug Public Service Announcements: Progress or Placebos?

Fully Arbitrary Public Announcements

Total Public Announcements

We present a dynamic epistemic logic for knowledge change of rational agents. Existing approaches only deal with partial public announcements, that means an announcement may lead to an inconsistent state. We introduce an extension of the multi-modal logic S5n featuring total public announcements where an update cannot result in an inconsistency. We also study total public announcements in the c...

Service Reliability and Urban Public Transport Design