Systole is the last stage of a heart beat. It happens right after diastole, when the heart refills with blood. During systole, the heart's two ventricles contract (squeeze). (The ventricles are the largest parts of the heart, which pump blood to the body and lungs.) During systole, the heart muscle gets an automatic electrical signal that tells the heart to contract (squeeze). This makes the blood flow out of the heart.
Basics. General contractors earned a mean $45.14 per hour, or $93,900 per year, as of May 2011, according to the Bureau of Labor Statistics. The lowest-paid 10 percent of contractors received less than $24.35 per hour, or $50,650 per year, while the best-paid 10 percent made $71.67 per hour, or $149,070 per year.
This makes 1536 hours a simple basis for calculating an hourly contract rate. Lets take a look at a few examples using base salaries (ie excluding superannuation): 1  $35000pa is about $17/hr for a permanent employee (35000/2080). 2  To earn $35000 as a contractor youâd need to charge about $23/hr (35000/1536).o for a contractor who only gets paid for the hours they work, and none of the hours for days like those listed above, they need to charge a higher hourly rate than the permanent employee. If you subtract 544 hours (68 days x 8 hours per day) from that you get 1536 hours.