Leptin is a cell-signalling hormone vital in the regulation of appetite, food intake and body weight. Studies have shown that an absence of leptin in the body or leptin resistance can lead to uncontrolled feeding and weight gain. Mechanisms and actions of leptin Leptin acts as a hormone that modulates the size of the adipose tissues in the body.
The Rosetta Stone The Rosetta Stone What is the Rosetta Stone? The Rosetta Stone is a stone with writing on it in two languages (Egyptian and Greek), using three scripts (hieroglyphic, demotic and Greek).
Rosetta or Rosette was the name used by the French at the time of Napoleon Bonaparte 's campaign in Egypt and thus became eponymous of the Rosetta Stone (French: Pierre de Rosette), which was found by French soldiers at the nearby Fort Julien in 1799.osetta or Rosette was the name used by the French at the time of Napoleon Bonaparte 's campaign in Egypt and thus became eponymous of the Rosetta Stone (French: Pierre de Rosette), which was found by French soldiers at the nearby Fort Julien in 1799.