Description and significance. Streptococcus mutans is a Gram-positive bacterium that lives in the mouth. It can thrive in temperature ranging from 18-40 degrees Celsius. The bacterium metabolizes different kinds of carbohydrates, creating an acidic environment in the mouth as a result of this process.
Occupational Safety & Health Administration. Welcome to OSHA's Fall Prevention Campaign. FALLS ARE THE LEADING CAUSE OF DEATH IN CONSTRUCTION. In 2013, there were 291 fatal falls to a lower level out of 828 total fatalities in construction. These deaths are preventable. Falls can be prevented and lives can be saved through three simple steps:
Some of the most common sources of workplace injuries include: 1  Falls to lower levels. 2  Slips / trips and falls. 3  Overexertion due to lifting / lowering.  Repetitive motion 1  injuries. Machine crushing or entanglement.  Work-related vehicle 1  accidents. Falling objects or debris.  Electrocution.