In addition, the role, scope of practice, and prescribing authorization of a nurse midwife will vary depending on licensure and where they practice. Certified Nurse Midwife responsibilities may include: 1  Primary and specialty care for women.
Messages: 357. Slack tide is when the current goes slack between tide changes and slack usually last 30min to an hour after peak high tide or peak low tide(hence high slack or low slack). Feb 27, 2008.
A diurnal tide is characterised by one high water (tide) and one low water (tide) per day. Typically with a diurnal tide each successive high or low tide is 24 hours and 50 minutes apart, this is the length of one lunar day.