Scanning techniques include: 1  Computed Tomography (CT): This scan combines an x-ray-type device with a computer. 2  Magnetic Resonance Imaging (MRI): The MRI scanner is a tunnel-shaped piece of equipment. 3  Flow-Sensitive MRI (FS MRI): This type of combines functional MRI with images of cerebrospinal fluid (CSF) flow.
The Voting Rights Act was signed into law on August 6, 1965, by Lyndon Johnson. Its primary purpose was to enforce the 15th Amendment of the Constitution, which forbade the states and the federal government to deny suffrage to any citizen on account of race, color, or previous condition of servitude.rovisions of the 1965 Voting Rights Act. 1  The key components of the Act were found in sections 4 thru 9. 2  They were temporary provisions, which were renewed and amended in 1970, 1975, and 1982, the last time for a period of twenty-five years. 3  They come up again for congressional consideration in 2007.
The Voting Rights Act of 1965 had immediate and dramatic results. Within two years with the help of many volunteers, African-American voter registration throughout the South increased to more than 50 percent of the voting-age population.outhern states had historically deprived the vote from millions of African-American citizens. Although guaranteed by the 15th Amendment, the right to vote had been denied blacks through discriminatory legal strategies, economic intimidation, and physical threats.