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.
Spring tides result in high waters that are higher than average, low waters that are lower than average, ' slack water ' time that is shorter than average, and stronger tidal currents than average. Neaps result in less-extreme tidal conditions. There is about a seven-day interval between springs and neaps. mixed tide; two uneven tides a day, or one high and one low, is also possible. Tides vary on timescales ranging from hours to years due to a number of factors.