While Pew Research from 2015 puts adult smartphone ownership in the U.S. at 72 percent, thereâs some debate about smartphone ownership among children. The average age for a child to get their first smartphone is currently 10.3 years according to the recent Influence Central report, Kids & Tech: The Evolution of Todayâs Digital Natives. âSetting rules as part of a conversation with your child is going to be far less problematic in the long run.â
Definition of acetabulum. plural. acetabulums. or. acetabula. play \-lÉ\. 1 : a ventral sucker of a trematode. 2 : the cup-shaped socket in the hipbone.
Acetoin, also known as 3-hydroxybutanone or acetyl methyl carbinol, with the molecular formula is C 4 H 8 O 2, is a colorless or pale yellow to green yellow liquid with a pleasant, buttery odor. Acetoin is a chiral molecule.The form produced by bacteria is (R)-acetoin.he conversion of acetoin into acetyl-CoA is catalysed by the acetoin dehydrogenase complex, following a mechanism largely analogous to the pyruvate dehydrogenase complex; however, as acetoin is not a 2-oxoacid, it does not undergo decarboxylation by the E1 enzyme; instead, a molecule of acetaldehyde is released.