June 05, 2012 08:00 AM Eastern Daylight Time. ARLINGTON, Va.--(BUSINESS WIRE)--CACI International Inc (NYSE:CACI) announced today that it has been awarded a $165 million prime contract to support the Department of Defense (DoD) with procurement initiatives through the companyâs Standard Procurement System (SPS).
Updated May 06, 2016. There are two menstrual cycle phases that occur during every monthly cycle. Each cycle begins on the first day you have your period and end on the day before you begin menstruating again. The first phase is the follicular phase, or the proliferative phase. The follicular phase begins on Day 1 of the menstrual cycle. Estrogen and progesterone levels are at their lowest during menstruation.
The Cardiac Cycle. The cardiac cycle is divided into four separate periods, two of the periods occurring during the relaxation phase (Diastole) of the cardiac muscle, and two periods occurring during the contraction phase (Systole) of the cardiac muscle. The first phase of the cardiac cycle is the Ventricular Filling Period (VFP) during diastole. At the start of VFP, the heart is in a polarized state and blood is moving through the atria past the heart valves and into the ventricles.