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:
Here is a list of what can cause scratches. 1  Construction debris. 2  Construction debris behind a scraper, or rust on a scraper. 3  Construction debris or rust in steel wool.  Construction debris in a strip 1  washer. Fabricating debris fused to the surface of low-quality tempered glass during the tempering process.