Table 6. Shows key test in the differentiation of the virdidans streptococci. Most species can only be identified to viridans species group. The VP test aids in the identification and differentiation of the viridans streptococcal species and is a key reaction for the S. anginosus group.
Air Traffic Controller Salary. The average pay for an Air Traffic Controller is $84,815 per year. Experience has a moderate effect on income for this job. $38,929 - $148,967.
For instance, in 2013, the median annual wage for U.S. aircraft mechanics was close to $56,000, with some technicians earning above $84,000.*** The numbers were very similar for those who repair and maintain avionics equipment. Safety is the number one priority in the aviation industry. And efficiency isn't far behind. That's why the sector relies on professionals who are well-trained in logistics, flight coordination, and dispatching. In 2013, the median annual pay for U.S. air traffic controllers was more than $121,000.