The mean time to onset of a 12% increase in FEV1 for PROVENTIL HFA Inhalation Aerosol was 7 minutes and the mean time to peak effect was approximately 50 minutes. The mean duration of effect as measured by a 12% increase in FEV1 was 2.3 hours. In some pediatric patients, duration of effect was as long as 6 hours.
The Aztecs were also known as the Tenochca (from which the name for their capital city, Tenochtitlan, was derived) or the Mexica (the origin of the name of the city that would replace Tenochtitlan, as well as the name for the entire country).
Chichen Itza is a large Maya city in Mexico. It is a UNESCO World Heritage Site, and has been since 1988. It is located on the Yucatan Peninsula, in the heart of what was once the Classic Maya civilization. The area where Chichen Itza was settled is rather devoid of surface water, with no large rivers.