Yet on the whole, the niacin flush is associated with beneficial health effects. Niacin specifically activates the high affinity G-protein coupled receptors, GPR109a and b, which then leads to release of a variety of prostaglandins that results in the flush response.
professional courtesy is something to be given by the off duty officer to an on duty officer not the other way around a working cop may use discretion on minor violations without fear of repercussions this consideration is extended to citizens and certainly can also be extended to off duty cops
Senatorial courtesy does not apply in the appointment of Supreme Court justices, though it did during the administration of Grover Cleveland, when political opposition of New York senator David B. Hill prevented Cleveland from gaining confirmation for a replacement to a seat traditionally held by a New Yorker.hen a president nominates a former U.S. senator to an executive branch office, the Senate often is more supportive than they would normally be. This type of courtesy was dealt a serious blow in 1989, when the Senate failed to confirm former U.S. senator John Tower of Texas to be Secretary of Defense.