CDC public service announcement. A PSA from the CDC regarding H1N1 prevention. A public service announcement (PSA) or public service ad, are messages in the public interest disseminated by the media without charge, with the objective of raising awareness, changing public attitudes and behavior towards a social issue.
This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (May 2015) (Learn how and when to remove this template message) Isolated Power or ISO is a sabermetric baseball statistic which aims to measure a batter's raw power. The formula is slugging percentage minus batting average. The final result measures how many extra bases a player averages per at bat.
What are BBCOR Baseball Bats? The acronym âBBCORâ is a big deal in the world of baseball. The professionals do not have to worry about it, but everyone else who plays, does. The acronym stands for Bat-Ball Coefficient and it is the standard that is used for baseball bats in adult, college, and high school games.