See, e.g., In re Interest of N.M. and J.M., 240 Neb. 690, 484 N.W.2d 77 (1992); In re Interest of A.D.S. and A.D.S., 2 Neb. App. 469, 511 N.W.2d 208 (1994). However, because Kevin and Letta did not object to the procedure below on these grounds, because the record below on the proceedings at which they were supposedly advised of their rights under § 43-279(1) is not included in the bill of exceptions on this appeal, and because of our resolution of this appeal, we do not decide, in this case, the effect of the failure of the record on appeal to affirmatively show compliance with these provisions of the juvenile code.