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, who probably originated as a nomadic tribe in northern Mexico, arrived in Mesoamerica around the beginning of the 13th century.
Often the term Aztec refers exclusively to the Mexica people of Tenochtitlan (now the location of Mexico City), situated on an island in Lake Texcoco, who referred to themselves as MÄxihcah Tenochcah [meËËÊiÊkaÊ teËnotÍ¡ÊkaÊ] or CÅlhuah Mexihcah [ËkoËlwaÊ meËËÊiÊkaÊ] .n Aztec marketplaces, a small rabbit was worth 30 beans, a turkey egg cost 3 beans, and a tamal cost a single bean. For larger purchases, standardized lengths of cotton cloth called quachtli were used. There were different grades of quachtli, ranging in value from 65 to 300 cacao beans.