English Collins Dictionary-English Definition & Thesaurus &nbsp. See also: worker participation, Participaction, participator, participant. ACTA. ACTA. abbr. acron.
In a policy statement published in Pediatrics, the American Academy of Pediatrics now advises parents to keep toddlers in rear-facing car seats until age two, or until they exceed the height or weight limit for the car seat, which can be found on the back of the seat.
Head and trunk control ( infant lifts head, watches a moving object by moving the head from side to side - occurs in the first few months after birth. Infant rolls over turning from the stomach to the back first, then from back to stomach - four or five months of age. Sit upright in a high chair (requires development of strength in the back and neck muscles)-four to six months of age. Infant gradually is able to pull self into sitting positions.