Costochondritis is a painful condition of the chest wall. It is caused by inflammation in the joints between the cartilages that join the ribs to the breastbone (sternum). Although painful, it is not a serious condition.Usually it has no obvious cause and settles over time.ostochondritis is a painful condition of the chest wall. It is caused by inflammation in the joints between the cartilages that join the ribs to the breastbone (sternum). Although painful, it is not a serious condition. Usually it has no obvious cause and settles over time.
Author: Alice Gilman. A calendar year and an employer's pay periods do not always coincide precisely. Approximately every 11 years, an employer that pays employees on a biweekly basis will have an extra pay period. An employer that pays employees on a weekly basis will have an extra pay period every five or six years.
And it is an issue we suspect many employers had not noticed or considered. With 52 weeks in a year, there normally are 26 bi-weekly pay periods in a calendar year. In 2015, however, there will be 27 for many employers. This oddity occurs every 11 years. In short, it happens because 26 bi-weekly paychecks only cover 364 days in a year, not 365 (or 366 in Leap Years).