GFR has traditionally been estimated using the 24-hour creatinine clearance; however, a calculation of estimated glomerular filtration rate (eGFR) is now recommended by the National Institutes of Health (NIH) and the National Kidney Foundation. eGFR, based on serum creatinine and/or cystatin C, is a simpler and generally more reliable test.
Bitcoin mining is an essential part of the worldâs largest cryptocurrency. Bitcoin help keep the Bitcoin network safe, stable, and secure. How does Bitcoin mining keep the network safe, stable, and secure?
But bitcoin isnât physical, so why do we call it mining? Because itâs similar to gold mining in that the bitcoins exist in the protocolâs design (just as the gold exists underground), but they havenât been brought out into the light yet (just as the gold hasnât yet been dug up).