After atrial contraction is complete, the atrial pressure begins to fall causing a pressure gradient reversal across the AV valves. This causes the valves to float upward (pre-position) before closure. At this time, the ventricular volumes are maximal, which is termed the end-diastolic volume (EDV).
How do I obtain Underage Working Papers in New York State? I'm 16 years old. I got a job at a movie theater for the summer, but they require Working Papers (something they called a green card) in order for me to work, since I'm under the age of 18.
Specific laws bar or allow people of certain ages to work specific jobs. 16 years old is the minimum age to get most jobs. Employers can hire people under 16 years old in certain circumstances, but in other circumstances, employers cannot hire people under 18 years old. The list of exceptions is long. This page lists all of the exceptions to the rule that a 16-year old can work most jobs. 13-year old, 14-year old, 15-year old, 16-year old, and 18-year old workers should study this to avoid applying for jobs they cannot be employed at. 13-Year Old or Younger People Can Work These Jobs. 1  Newspaper Delivery. 2  Baby-Sitter.