Canada's culture draws from its broad range of constituent nationalities, and policies that promote a just society are constitutionally protected.he United States is home to a number of perceptions about Canadian culture, due to the countries' partially shared heritage and the relatively large number of cultural features common to both the US and Canada. For example, the average Canadian may be perceived as more reserved than his or her American counterpart.
In soft tissues, crepitus can be produced when gas is introduced into an area where it is normally not present. The term can also be used when describing the sounds produced by lung conditions such as interstitial lung diseaseâthese are also referred to as rales.
Definition. Black lung disease is the common name for coal workers' pneumoconiosis (CWP) or anthracosis, a lung disease of older workers in the coal industry, caused by inhalation, over many years, of small amounts of coal dust.reathing the dust causes silicosis, a severe disease that can scar the lungs. X rays can detect black lung disease before it causes any symptoms. If exposure to the dust is stopped at that point, progression of the disease may be prevented.