The normal PaCO2 (arterial partial pressure of carbon dioxide in the blood) is 40mmHg.he normal PaCO2 (arterial partial pressure of carbon dioxide in the blood) is 40mmHg.
Highlights for Children, often referred to simply as Highlights, is an American children's magazine. It began publication in June 1946, started by Garry Cleveland Myers and his wife Caroline Clark Myers in Honesdale, Pennsylvania (the present location of its editorial office). They both worked for another children's magazine, Children's Activities, for 12 years before leaving to start Highlights.
On the week ending November 12, 1955, Billboard published The Top 100 for the first time. The Top 100 combined all aspects of a single's performance (sales, airplay and jukebox activity), based on a point system that typically gave sales (purchases) more weight than radio airplay.