Causes of Rib Cage Pain. The most common causes of rib cage pain are a pulled muscle or bruised ribs. Other causes of rib cage pain are: 1  broken ribs. 2  injuries to the chest. 3  rib fracture. 4  diseases that affect the bones, such as osteoporosis. 5  inflamed lining of the lungs. 6  muscle spasms. 7  inflamed rib cartilage.ther causes of rib cage pain are: 1  broken ribs. 2  injuries to the chest. 3  rib fracture. 4  diseases that affect the bones, such as osteoporosis. 5  inflamed lining of the lungs. 6  muscle spasms.
In electronics and communications, the decibel (abbreviated as dB, and also as db and DB) is a logarithmic expression of the ratio between two signal power, voltage, or current levels.
Power Units. dBm (sometimes dBmW or decibel-milliwatt) is an abbreviation for the power ratio in decibels (dB) of the measured absolute power of the signal referenced to one milliwatt (mW). The power of 0 dBm corresponds to a power of 1 mW.he decibel (dB) is a unit used to measure the intensity of a sound or the power or amplitude level of an electrical signal by comparing it with a given level on a logarithmic scale.