This tactile feedback is related to a difference in tis-sue density as one goes from the parenchyma to the vessels or from the parenchyma to the collecting sys-tem, and also to the selectivity of the CUSA to spare tissue of high collagen content.
1 In the least developed countries, the overall illiteracy rate is 49 percent. 2  52 percent of all non-literates live in India and China. 3  Africa as a continent has a literacy rate of less than 60 percent. 4  In Sub-Saharan Africa since 1980, primary school enrollment has declined, going from 58 percent to 50 percent.
While accounting for only 13 percent of the US population, African Americans represent 28.4 percent of all arrests. According to Bureau of Justice Statistics approximately 3.1 percent of African American men, 1.3 percent of Latino men, and 0.5 percent of white men are in prison.