麻豆传媒

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African American men are only one-third as likely to own their own businesses as are white men, according to an analysis by an economist at the University of California, Santa Cruz.

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International support during the coming year will be critical to the future of Guatemala, where lasting peace remains elusive following the negotiated end to its bloody 36-year civil war, says author Susanne Jonas.

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Some scientists are trying to find ways to restore tropical forests that have been cleared and abandoned. So far, however, they are finding that they have much yet to learn. (Restoration Ecology, 12-00)

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Researchers have devised a new method of analyzing DNA molecules that can rapidly discriminate between nearly identical DNA strands using an instrument called a nanopore detector. (Nature Biotechnology, 3-01)

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A new study documents that toxic storage facilities "chase" minorities and the poor, suggesting that the disproportionate concentration of toxic hazards in these neighborhoods is the result of discrimination in siting decisions rather than a matter of minority choice.

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Some experts believed minke whales rarely made any sounds, but researchers now report that not only are these whales vocal, their repertoire includes a loud and distinctive songlike sequence unlike any previously recorded whale sound.

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An economist has found that two-thirds of trade-displaced U.S. workers earn less when they find a new job than they did on their old job. A new book explores the consequences for American workers of an era of increasingly free trade.

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Wartime propaganda is a critical element of military strategy and political success, and it warrants scrutiny by a vigilant public, according to a persuasion expert.

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U.S.-style market systems can have unpredictable consequences in the Third World, where international aid programs can unwittingly foster social tensions by increasing the gap between rich and poor.

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Two new reports on genetically modified plants and organisms underscore the need for more research and regulation, says a contributor to last week's National Academy of Sciences report and the coeditor of a new book on the controversial technology.