Mri Contrast Agents

Famous quotes containing the words contrast and/or agents:

    Flowers and fruits are always fit presents; flowers, because they are a proud assertion that a ray of beauty outvalues all of the utilities of the world. These gay natures contrast with the somewhat stern countenance of ordinary nature: they are like music heard out of a work-house.
    Ralph Waldo Emerson (1803–1882)

    Even though fathers, grandparents, siblings, memories of ancestors are important agents of socialization, our society focuses on the attributes and characteristics of mothers and teachers and gives them the ultimate responsibility for the child’s life chances.
    Sara Lawrence Lightfoot (20th century)