Issue for the week of June 29th, 2013

The case for (and against) a rock from Mercury. (p. 20)

The Large Hadron Collider?s big success leaves no clear avenue for new physics. (p. 22)

Global spread of Asian tiger mosquito could fuel outbreaks of tropical disease in temperate regions. (p. 26)

Fifth edition of the widely used psychiatric manual focuses attention on how mental disorders should be defined. (p. 5)

Curiosity instrument confirms expectation of major exposures. (p. 8)

Ratio of hydrogen to deuterium suggests molecule on both orbs has a common source. (p. 8)

Mice that got Salmonella in the evening fared better than those given the microbe in the morning. (p. 9)

Hand washing goes only so far in retarding flu transmission. (p. 9)

A change in taste cells makes glucose-baited traps repellent. (p. 10)

New specimen may be a feathered dinosaur ? or the earliest avian yet discovered (p. 10)

African clawed frogs imported for 20th century pregnancy tests apparently communicate B. dendrobatidis to native species. (p. 11)

A search of more than 2 million DNA locations in more than 125,000 people finds a weak, and perhaps dubious, association with schooling. (p. 12)

Mice with the same genes and surroundings diverged in brain development depending on how much they moved around their environment. (p. 13)

A skin census finds that toes and heels have the most fungal types. (p. 13)

Partial skeleton near root of monkey, ape and human line. (p. 14)

Hominids moved toward eating grasses and away from tree leaves, according to chemical analyses of fossil tooth enamel. (p. 14)

Archaeology suggests Etruscans brought the grape to Gaul. (p. 15)

Method could hide messages without sender?s knowledge. (p. 16)

Researchers have created a polariton device that runs on electricity. (p. 16)

Complementary studies, focusing on repetitive grooming in mice, offer potential for new treatment strategies in humans. (p. 18)

Neural efficiency reigns in brains of high-IQ individuals as they view their surroundings, a new study indicates. (p. 18)

Hula painted frog turns out to be the only surviving member of an extinct genus. (p. 19)

Relationship satisfaction for Internet daters is similar to that of people who find potential partners in more traditional ways. (p. 19)

Several complications are more common in women with the condition, including gestational diabetes and cesarean births. (p. 19)

Intensive care units that bathe patients and take other precautions have fewer cases of staph, a study finds. (p. 19)

New cell-based computers do division and logarithms more like a slide rule than a laptop. (p. 19)

Review by Janet Raloff (p. 30)

Review by Sid Perkins (p. 30)

Excerpt from the June 29, 1963, issue of Science News Letter (p. 4)

(p. 31)

The Science Life (p. 32)

Source: http://www.sciencenews.org/view/issue/id/351031/title/Issue_for_the_week_of_June_29th_2013

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