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.
In most places, there are two tides a day. They each have a high point (the high tide) and a low point (the low tide). We speak of a flood tide coming in towards high tide, and an ebb tide going out towards low tide. The period of the tide is about 12 hours and 25.2 minutes, exactly half a tidal lunar day.