Estrogen Curbs Appetite In Same Way As The Hormone Leptin. FULL STORY. Estrogen regulates the brain's energy metabolism in the same way as the hormone leptin, leading the way to a viable approach to tackling obesity in people resistant to leptin, researchers at Yale School of Medicine report in the December 31 online issue of Nature Medicine.
1. smokeless powder-an explosive (trade name Ballistite) that burns with relatively little smoke; contains pyrocellulose and is used as a propellant. Ballistite. explosive-a chemical substance that undergoes a rapid chemical change (with the production of gas) on being heated or struck.
Shape and size have a profound effect on the burning rate and power generation of a powder (Meyer 1987). Common particle shapes of smokeless propellants include balls, discs, perforated discs, tubes, perforated tubes, and aggregates (Bureau of Alcohol, Tobacco and Firearms 1994; Selavka et al. 1989).