Approximately 30 motor freight companies serve the area. The Virginia Inland Port is located in Front Royal off Interstate 81, just 85 miles north of Waynesboro. The International Port Hampton Roads (185 miles) is the largest natural deep water harbor in the world.
The organic nitrates, including nitroglycerin, isosorbide dinitrate and isosorbide mononitrate, act as prodrugs for nitric oxide (NO) which is a potent vasodilator gas. Nitric oxide activates guanylyl-cyclase in vascular endothelial cells, which increases intracellular cyclic GMP and thereby reduces intracellular calcium concentrates and dephosphorylates myosin light chains causing relaxation of smooth muscle cells.
Silver nitrate is an inorganic compound with chemical formula AgNO 3. This compound is a versatile precursor to many other silver compounds, such as those used in photography. It is far less sensitive to light than the halides. It was once called lunar caustic because silver was called luna by the ancient alchemists, who believed that silver was associated with the moon. In solid silver nitrate, the silver ions are three-coordinated in a trigonal planar arrangement.