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http://www.sciencenews.org/view/issue/id/44829
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In the November 7 Issue:
- TABLE OF CONTENTS
- As the worms churn: Burrowing animals mix soil and sediments, shaping the environment and scientists’ understanding of it
- A partnership apart: DNA in hand, scientists dissect and redefine the iconic lichen mutualism
- Better living through plasmonics: Mixing light with nanotechnology could help treat cancer and build faster computers
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July 4th, 2009
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Understanding long-term changes in wildfire patterns challenges scientists from multiple disciplines. (p. 26)
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Personal genomics companies offer forecasts of disease risk, but the science behind the packaging is still evolving. (p. 16)
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Researchers study secrets of microbes' locomotion and how to mimic that movement. (p. 22)
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The giant black holes at the cores of massive nearby galaxies may be two to four times heftier than estimated. (p. 5)
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Male hummingbirds set record for extreme plunges out of the sky. (p. 7)
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Combination of friction and push propels snakes forward on flat surfaces. (p. 7)
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Researchers link the motion of two ion pairs through “spooky action at a distance.” (p. 8)
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long-proposed method of searching for extrasolar planets has finally discovered one — a body six times heavier than Jupiter that orbits a dwarf star 20 light-years from Earth. (p. 8)
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A new study assesses the chances that two planets will collide or a planet will plunge into the sun in the next 5 billion years. (p. 9)
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A familiar star, visible to the naked eye, has shrunk dramatically in just 15 years. (p. 9)
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A speedy stellar neighbor may be a refugee from another galaxy. (p. 9)
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The mutant protein implicated in Huntington’s may rely on a second protein. The finding could help explain why only some neurons are vulnerable to the disease. (p. 10)
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Researchers have developed a new way to see where the molecules are active. (p. 10)
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Scientists show how change happens when cells responsible for colorful hair lose their self-renewing abilities. (p. 12)
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The tuberculosis microbe makes compounds that alter basic systems inside key immune cells, facilitating the bacterium’s survival in the body, new research shows. (p. 12)
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Replacing missing microRNAs in cancer cells may open up a new field for cancer treatment. (p. 13)
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Laparoscopic banding surgery to limit appetite improves several health markers in obese adolescents. (p. 13)
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Study finds a lack of chemical tags near a prostate cancer gene in African American males. (p. 13)
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New archaeological evidence shows signs of prehistoric hunting and other human activities on now-submerged portions of Lake Huron. (p. 14)
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Caring for teens and young adults with autism not only creates intense psychological pressure on mothers but may promote sharply decreased production of a crucial stress hormone, a long-term study suggests. (p. 14)
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Life-size 3-D versions of children can draw kids with autism into social encounters and more news from the annual meeting of the Jean Piaget Society in Park City, Utah, June 4-6. (p. 14)
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A new survey may have unveiled the birthplace of the world’s largest ice sheet. (p. 15)
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(p. 4)
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(p. 30)
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Review by Sid Perkins (p. 31)
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Review by Rachel Zelkowitz (p. 31)
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Nobelists to students: Being wrong may be just right (p. 32)
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Book Review: Don’t Be Such a Scientist: Talking Substance in an Age of Style
Review by Sid Perkins
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Review by Sid Perkins
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