Your heart's electrical system controls the timing of your heartbeat by regulating your: 1  Heart rate, which is the number of times your heart beats per minute. 2  Heart rhythm, which is the synchronized pumping action of your four heart chambers.
Get it delivered right to your inbox! Service Computation Date Determination. The service computation date is the date on which you start counting the years of service you need to retire. The date for most employees is the date on which they first enter the service. However, some have been on active duty with the armed forces and may be entitled to service credit for that time.
Jupiterimages/Creatas/Getty Images. Basic Active Service Date (BASD), also known as Date Initially Entered Military Service, (DIEMS) is an important date for service members of all the military branches. The BASD is the date you use to calculate your time in Active Service (AS). Once you know that figure, you can then calculate your retirement pay and date of eligibility. For new service members, it can be difficult to find out your actual BASD. In many cases, it is not the date you began training.