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later.
• The researchers and other experts said the results suggest that the definition of prematurity should be reconsidered.
• ___

• LONDON (AP) -- The chairman of Barclays announced his resignation Monday after accepting responsibility for a price-fixing scandal that saw the bank slapped with trans-Atlantic fines of $453 million.
• Last week, U.S. and British agencies imposed the fines on Barclays for submitting false data on interbank borrowing rates between 2005 and 2009. The bank's executives have been under fire since then and the calls are growing for chief execu

tive Bob Diamond to quit too.
• "As chairman, I am the ultimate guardian of the bank's reputation," said Marcus Agius, who had led the board since 2007. "Accordingly, the buck stops with me and I must acknowledge responsibility by standing aside."
• Agius also submitted his resignation as chairman of the British Bankers Association, the trade body that helps calculate the interbank borrowing rates.
• Barclays shares were up 5.2 percent at 171 pence in midmorning trading in London. Its share price has fallen sharply since the imposition of the fine.
• ___

• With all the star power at the BET Awards -- Kanye West, Jay-Z, Nicki Minaj, Beyonce and Samuel L. Jackson, to name a few -- the most stirring moment came not from a superstar, but from the mother of one.
• Whitney Houston's mother Cissy provided the emotional highlight of Sunday's ceremony as she sang "Bridge Over Troubled Water" in tribute to her late daughter, leaving audience members like Beyonce and Soulja Boy in tears.
• Mariah Carey opened the tribute, and her voice wavered as she told stories about Houston. She recalled the last time she saw Houston last year, and how the two laughed and gossiped together.

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