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Contents
- Sweet Confusion: Does high fructose corn syrup deserve such a bad rap?
- Closed Thinking: Without scientific competition and open debate, much psychology research goes nowhere
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Read articles, including Science News stories written for ages 9-14, on the
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Contents
- A mind for math: A part of the brain associated with making memories may also predict success in learning math
- Teens take home science gold: A low-cost, self-driving vehicle; battery alternatives and analyses of galaxy clusters claim top prizes at a global high school science competition
- Flagging loose bolts: “Smart alert washer” automatically flags when a nut is coming loose, warning of potential danger
Genes & Cells
- New cell-based computers do division and logarithms more like a slide rule than a laptop.
- Highlights from the genome biology meeting held May 7-11 in Cold Spring Harbor, N.Y., include an enormous tree's enormous genome, genes for strong-swimming sperm, and back-to-Africa migration some 3,000 years ago.
- Fine-tuning of technique used in other animals could enable personalized medicine.
- Gene activity changes accompany doglike behavior in foxes bred over more than 50 years.
- Gene activity in the brain suggests that circadian rhythms are off-kilter in people with depression.
- Mice with the same genes and surroundings diverged in brain development depending on how much they moved around their environment.
- E. coli moving between systems may cause urinary tract infections.
- Creature's cells change shape to form appendages.
- Modern bird genomes reveal evidence that virus is at least 82 million years old.
- Laboratory-added genetic change makes avian influenza unable to bind to bird cells.
- Genes of “living fossil” do reveal changes needed to live on dry land.
- H7N9 influenza spreads to Beijing, may come from poultry and pigeons.
- H7N9 influenza genes came from three bird viruses.
- Replacing fatty molecules turns organs transparent, allowing study of structure and function at the same time.
- Gut bacteria transform compound into artery hardener.
- Using lasers, scientists target a sluggish set of neurons in rats to ease drug compulsion.
- DNA-based switches could be used in diagnosis and treatment of diseases.
- Targeting cholesterol in retina stops rogue blood vessel growth often seen in the vision disease.
- Mice slim down after receiving bacteria transplanted from rodents that had the surgery.
- New World breeds trace back to both major bovine lineages, genetic analysis shows.
- Elusive deep ocean dwellers have low genetic diversity despite living around the globe.
- Bedbugs turn on several genes, in both their shells and their nerve cells, to stave off effects of insecticides.
- Deadly coronavirus related to SARS attaches to protein on cells unlike the one SARS uses.
- The contagious cancer evades the animal’s immune system by turning off key genes.
- Such genetic theft from bacteria and archaea is unusual among eukaryotes.
- An experimental transplant of what have long been considered just support cells shows they may play a role in memory and learning.
- Taste-cell protein sends message to brain that tongue has detected sweet, bitter or umami flavor.
- Human and mouse sperm both follow upstream currents to the egg.
- Emerging virus causes severe illness, but doesn’t spread as quickly as SARS.
- Losing zzz’s shifts workings of more than 700 genes.
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Eruption early in human prehistory may have been more whimper than bang
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Greed may breed financial fitness, but evolution allows unselfishness to survive
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Fine-tuning of technique used in other animals could enable personalized medicine
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Simulation suggests long-term effect on sea level not as dire as some predictions
Not to miss
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Coverage of the 2013 American Association for the Advancement of Science meeting
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The Year in Science 2012
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Three-part series on the scientific struggle to explain the conscious self
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Tables of contents, columns and FAQs on SN Prime for iPad
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