The hemoglobin is checked before each donation to. ensure that the donor has adequate red blood cell levels to donate blood. Blood donors must have a minimum of 12.5 g/dL hemoglobin or a hematocrit of 38% to be accepted for donation. The hematocrit is a measure of the volume that red blood cells take up in the blood. Most men have a hemoglobin of 12.5 g/dL or greater and a hematocrit above 38 percent, but many women naturally have lower hemoglobin/hematocrit levels.
Iwo Jima, which means Sulfur Island, was strategically important as an air base for fighter escorts supporting long-range bombing missions against mainland Japan.ecause of the distance between mainland Japan and U.S. bases in the Mariana Islands, the capture of Iwo Jima was necessary to provide an emergency landing strip for crippled B-29s returning from bombing runs.
Letters from Iwo Jima is an important film for two reasons. For one thing, it is the first filmic attempt to undo the demonisation of Japanese soldiers that was propagated by the American mass media during and after the Pacific war of 1941-45.astwood has even referred to it as a Japanese film, and dedicated it to the fallen soldiers on Iwo Jima. Many of the 6,500 Japanese who crowded into its two-day premiere no doubt were attracted because of the positive image of the Japanese portrayed in the film.