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:
Although it is commonly known that construction employment was impacted during the recession, we are now able to quantify the scale of the impact it has had on construction workers. Between 2008 and 2009, construction workers saw a decline in payroll to the tune of $52.1 billion annually (16%). In California alone, workers saw construction payroll shrink by $8.7 billion during that same span. Measuring payroll gives a better sense of the total impact than simply counting jobs losses since it includes hours and wages. States with highest percent decline in construction payroll (2008-2009): 1.