Ralph Bunche was a scholar, Nobel laureate, career diplomat and peacekeeper. He was known as an Africanist who sought to study and understand Africa from the African point of view. (© AP Images)
The U.S. work force is vast, diverse and constantly changing, with more foreign-born, female and minority workers and managers than ever before.
Researcher Babak Parviz of the University of Washington is pursuing innovations such as computer displays that fit into contact lenses and nanodevices that monitor health and dispense medicines.
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