anal fistula (fistula in aÂ´no) one opening on the cutaneous surface near the anus, which may or may not communicate with the rectum. arteriovenous fistula one between an artery and a vein, either pathologic (such as a varicose aneurysm) or surgically created to ensure an access site for hemodialysis.
1 millibar (or hectopascal/hPa), is equivalent to 0.02953 inches of mercury (Hg). It is therefore only necessary to multiply a reading in millibars by the latter figure, to achieve the required conversion. E.g. for 1023 mbar, multiply by 0.02953=30.21 inches.
Pressure is measured in Pascals in the metric system, but barometers are often calibrated in inches of mercury or millibars (1 millibar = 1 hectoPascal = 100 Pascals). Divide the reading in inches of mercury by 0.0295 to convert it to a pressure in millibars.Some continental barometers are calibrated in centimetres of mercury. To convert this to a reading in millibars, first multiply the number of cm by 2.54 to get to inches of mercury, and then divide by 0.0295 as above.ivide the reading in inches of mercury by 0.0295 to convert it to a pressure in millibars. Some continental barometers are calibrated in centimetres of mercury. To convert this to a reading in millibars, first multiply the number of cm by 2.54 to get to inches of mercury, and then divide by 0.0295 as above.