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).
Calvin, Megâs husband, is in London presenting a scientific paper. The family members discuss their childhood, when most of their meals were cooked by Mrs. Murry in her attached laboratory over Bunsen burners. The phone rings and Meg answers it and gives it to her fatherâit is the President of the United States. Mr. Murry listens carefully, his face going blank. After he hangs up, he tells his family that there is a threat of war from âMad Dogâ (El Rabioso) Branzillo, dictator of the South American country, Vespugia.