Before an article is deemed appropriate to be published in a peer-reviewed journal, it must undergo the following process: 1  The author of the article must submit it to the journal editor who forwards the article to experts in the field. Because the reviewers specialize in the same scholarly area as the author, they are considered the authorâs peers (hence âpeer reviewâ).
Your baby will probably learn to sit independently between the ages of 4 and 7 months. Your baby will have mastered rolling over and holding his head up. Most babies can sit well for several minutes without support by the time they're 8 months old.
When he is about 4 months old, his neck muscles will rapidly grow stronger, helping him as he learns to sit up. Your babyâs physical development progresses from the central part of his body to the peripheral parts -- his arms and legs.ou are probably curious about when your baby will be ready to sit up by himself. He starts getting control over larger muscles before learning to control the smaller muscles of his body.