The first library in the United States to be commissioned by Carnegie was in 1886 in his adopted hometown of Allegheny, Pennsylvania (now the North Side of Pittsburgh). In 1890, it became the second of his libraries to open in the USA.
Selective exposure is a theory within the practice of psychology, often used in media and communication research, that historically refers to individualsâ tendency to favor information which reinforces their pre-existing views while avoiding contradictory information.ccuracy motivation is not always beneficial within the context of selective exposure and can instead be counterintuitive, increasing the amount of selective exposure. Defense motivation can lead to reduced levels of selective exposure.
In cell biology, selective permeability is the property of a living cell membrane that allows the cell to control which molecules can pass through the membrane, moving into or out of the cell. In order to understand this property, it helps to be aware that there are three different methods by which molecules can move into or out of cells: passive transport, active transport, and transport by the use of vesicles.