Bilirubin (Definition) Bilirubin is the potentially toxic product of heme metabolism. It is formed by breakdown of heme present in hemoglobin, myoglobin, cytochromes, catalase, peroxidase and tryptophan pyrrolase. Eighty percent of the daily bilirubin production comes from hemoglobin.
1. the act or fact of shrinking. 2. the amount by which anything decreases in size, value, weight, etc. 3. (Agriculture) the loss in body weight during shipment and preparation of livestock for marketing as meat. 4. (Commerce) the loss of merchandise in a retail store through theft or damage.
This restraint creates tensile stresses in the concrete slab which in turn may produce drying shrinkage cracking. Concrete slab drying shrinkage cracking can be the unfortunate end result of a combination of factors related to material choices, construction planning, placement, and curing periods.