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Voles who became separated from a mate produced higher levels of a chemical that has been linked to depression. Losing a partner 'has a dramatic impact on the brain,' one of the study's authors says.
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COLUMN ONE
A remarkable model brings a sense of order to the universe, allowing observers to navigate it as if by rocket ship. >>
About 11 million of 33 million HIV-positive people have TB, a Nobel laureate warns, and if financially troubled nations renege on aid pledges, it would deprive the poor of treatment. >>
NASA engineers will try switching to an 18-year-old backup system to bring the instrument back online. >>
The vote is a step toward settling a suit on behalf of children with psychiatric, emotional or behavioral problems. >>
HEALTHCARE
Physicians also dispute a ban on charging emergency room patients for balances not paid by insurers. >>
South Africa's new health minister broke dramatically on Monday from a decade of discredited government policies on AIDS, declaring that the disease was unquestionably caused by HIV and must be treated with conventional medicine. >>
Edwards Lifesciences Corp.'s minimally invasive heart valve kept 94% of patients alive a month after surgery, the best results yet for a technology that may grow into a $1.3-billion market for medical device makers. >>
Attorneys general from Connecticut, New Jersey and Delaware sent letters Friday to 11 companies that make baby bottles and baby formula containers, asking that they no longer use the chemical bisphenol A in their manufacturing because they said it was potentially harmful to infants. >>
An American computer game designer reached space today, fulfilling a long-deferred childhood dream that began with the flight of his astronaut father. >>
Regulatory board will immediately begin asking nurses about any convictions when they seek license renewals. The agency will also work to expand fingerprinting. >>
Dr. George Palade, the UC San Diego Nobel laureate whose work isolating, imaging and identifying the function of minute organelles within cells prompted the Nobel committee to label him and his co-winners the fathers of cell biology, died Tuesday at his home in Del Mar, Calif., after a long illness. He was 95. >>
The CDC calls the rate 'very good' for a new vaccine such as Gardasil. Earlier data show, however, that only about 1% of Latina teens have received it. >>
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Science: Latest AP News
Mapping the Universe
A remarkable model brings a sense of order to the universe, allowing observers to navigate it as if by rocket ship. By John Johnson Jr. Oct. 15.
Health Blog
For voters, abstract talk works -- but not at crunch time Don't get bogged down with medical journals -- watch Dr. Z instead! Boys and dating violence Books: science and environment
 'Hot, Flat, and Crowded' outlines five problems the U.S. faces because of its dependence on fossil fuels. Sept. 28.
The author builds an 'Eco Shed,' and it costs about $90,000. Environmentally friendly? Mostly, but it ain't cheap. Sept. 27.
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