Hydroxycitric acid (HCA), a derivative of citric acid, is found primarily in a small, sweet, purple fruit called the Malabar tamarind or, as it is most commonly called, Garcinia cambogia.hat Is the Scientific Evidence for Hydroxycitric Acid? It remains unclear whether HCA offers any weight-loss benefits. In an 8-week double-blind, placebo-controlled trial of 60 overweight individuals, use of HCA at a dose of 440 mg 3 times daily produced significant weight loss as compared to placebo.
Reasonâs âSwiss Cheeseâ Model of Human Error One particularly appealing approach to the genesis of human error is the one proposed by James Reason (1990). Generally referred to as the âSwiss cheeseâ model of human error, Reason describes four levels of human failure, each influencing the next (Figure 1).
James Pierson Beckwourth, born James Beckwith and generally known as, Jim Beckwourth (April 26, 1798 or 1800 â October 29, 1866 or 1867) was an American mountain man, fur trader, and explorer. A mulatto born into slavery in Virginia, he was freed by his father (and master) and apprenticed to a blacksmith; later he moved to the American West.