Issue for the week of September 8th, 2012

The story of fertilization, from the female point of view (p. 16)

Scientists weigh in on the hydraulic fracturing debate (p. 20)

Researchers pursue analogy between statistical evidence and thermodynamics (p. 26)

Captive snakes with a fatal disease harbor viruses never before seen in reptiles. (p. 5)

Jaw and face bones suggest two Homo species lived in East Africa nearly 2 million years ago. (p. 8)

DNA analysis of people from 15 groups identifies distinct groups and migrations. (p. 8)

Complete genetic profiles of people from three hunter-gatherer groups suggest Homo sapiens interbred with a now-extinct species on the continent relatively recently. (p. 9)

Molecular analysis yields clues about the immune system activity of a probable sacrificial victim. (p. 9)

Analyzing six decades of temperature records reveals inexorable warming and increasing episodes of extreme heat. (p. 10)

Footprint measure reveals unsustainable use of the world?s aquifers. (p. 10)

Just blowing air through a pachyderm?s larynx produces fundamental elements of the mysterious rumblings that send messages too low for people to hear. (p. 11)

Some of the brain?s nerve cells are programmed to light up only upon witnessing another?s error. (p. 12)

Residents of two remote Peruvian communities appear to have survived infection by the deadly virus. (p. 12)

New users of club drug do worse than nonusers on one recall test. (p. 13)

Normal-weight people who develop diabetes have higher mortality than people who are overweight or obese at the disease?s onset (p. 13)

Researchers comb the Internet for snapshots of a comet and use the collected images to calculate its orbit. (p. 14)

A new proposal suggests a potential new source of the element as astrophysicists try to explain why it?s in such short supply. (p. 14)

Separate studies support the theory that stem cells cause cancers to emerge and recur. (p. 15)

Review by Tom Siegfried (p. 30)

Review by Rachel Ehrenberg (p. 30)

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(p. 31)

Creating small wonders (p. 32)

Source: http://www.sciencenews.org/view/issue/id/343253/title/Issue_for_the_week_of_September_8th,_2012

nh primary david crowder band natalie wood van halen annalynne mccord billy the kid neville