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.
On average, high tides are separated by about 12 hours and 24 minutes. The 12 hours is because of earth's rotation, and the 24 minutes is compensation for the movement of the â¦ moon. So low tides would be about half way through those 12 hour 24 minute periods.he spring tide is the tide that has the greatest difference  between low and high tides. This type of tide occurs during new or  full moons when the gravitational pull of t â¦ he moon combines with  that of the sun's.