For a stay longer than 180 days, the flat-rate per diem is 55 percent. Rates are fixed, and partly based on the cost of living in a location. Johnson said the changes are meant to give long-term TDY travelers an incentive to seek out extended-stay lodgings, which generally are less expensive.
Bilirubin is a yellow pigment that causes jaundice and dark yellow colored urine when present in increased amounts. Some people normally have higher bilirubin in their blood. This is known as Gilbert's disease. So their urine will naturally have more bilirubin.
Bilirubin is formed as a breakdown product of hemoglobin (from red blood cells) in the liver and is secreted into the bile, which enters the intestines. If the intestinal contents travel at a normal speed, chemical changes in bilirubin produce stool that is light to dark brown.