Mastoiditis is the result of an infection that extends to the air cells of the skull behind the ear. Specifically, it is an inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system inside the mastoid process.
Extract: Government spending has increased substantially in recent years. Consequently, the breakeven oil price rose to $106 a barrel in 2014 from $69 a barrel in 2010. As a result, with the large decline in oil prices, the fiscal deficit has increased sharply and is likely to remain high over the medium-term.
However, breakeven price estimates vary widely and there is hardly a consensus regarding the oil breakeven price for U.S. shales among analysts. A reason for this variability of estimates is that breakeven oil price and breakeven economics are tricky terms that may mean a variety of things. The risk of confusion can be illustrated by looking at the following three definitions of breakeven oil prices: