Answer:
political corruption was set aside.
Ladd-Franklin's mathematical interests ultimately led her to make important contributions to the field of psychology. In 1886, she became interested in the geometrical relationship between binocular vision and points in space and published a paper on this topic in the first volume of the American Journal of Psychology the following year. During the 1891-92 academic year, Ladd-Franklin took advantage of her husband's sabbatical leave from Johns Hopkins and traveled to Europe to conduct research in color vision in the laboratories of George Müller (1850-1934) in Göttingen, and Herman von Helmholtz (1821-1894) in Berlin, where she also attended lectures by Arthur König. In contrast to the prevailing three-color and opponent-color explanations of color vision, Ladd-Franklin developed an evolutionary theory that posited three stages in the development of color vision. Presenting her work at the International Congress of Psychology in London in 1892, she argued that black-white vision was the most primitive stage, since it occurs under the greatest variety of conditions, including under very low illumination and at the extreme edges of the visual field. The color white, she theorized, later became differentiated into blue and yellow, with yellow ultimately differentiated into red-green vision. Ladd-Franklin's theory was well-received and remained influential for some years, and its emphasis on evolution is still valid today.
15 percent of the total population. (I learned this in World History Honors)
In several states across the US, individuals can take direct action by using different procedures like recalls and referendums.
A recall is when citizens of a particular state want to remove an individual from political office. Several states, like Arizona and Wisconsin, will allow citizens to use this process. In order to get an elected official removed from office, a group must get a certain percentage of citizens from their state to sign a petition in favor of removing this person. If enough people sign, then there will be a general election in which all citizens vote on whether or not to remove the person from office.
A referendum, on the other hand, revolves around state legislatures making laws that must be approved by the citizens before being implemented. This makes it so that citizens have the power over certain laws in their state.
