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 ended the practices that had denied African Americans the right to vote in Southern states. Registration of black voters in the South jumped from 43 percent in 1964 to 66 percent by the end of the decade.he Voting Rights Act, signed into law by President Johnson on August 6, 1965, suspended literacy and other tests in counties and states showing evidence of voter discrimination. These counties and states also were prohibited from creating new voter requirements that denied citizens their right to vote.