Uncategorized
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Science Past from the issue of December 5, 1959
INSECTS WINNING RESISTANCE BATTLE — Insects appear to be winning the costly battle — $500,000 is spent each year on control — to keep them in check. Resistance to insecticides is now virtually nation-wide according to results of an extensive study.… Resistance can take many forms, research has shown. Some of these are: slow rate […]
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Letters
Jovian scars Page 8 of the August 29, 2009, Science News shows a dark impact scar on Jupiter’s surface. Similar dark areas appeared when Comet Shoemaker-Levy 9 hit. Why are they dark? Clearly, we are not seeing any “subsurface dirt.” Also, the color cannot be due to some dark underlying gas. Could it be an […]
- Health & Medicine
Malaria shows signs of resisting best drug used to fight it
The frontline malaria medicine artemisinin shows gaps in effectiveness in Southeast Asia.
- Animals
Classic view of leaf-cutter ants overlooked nitrogen-fixing partner
A fresh look at a fungus-insect partnership that biologists have studied for more than a century uncovers a role for bacteria.
- Life
Corn genome a maze of unusual diversity
Multiple teams announce complete draft of the maize genome, with a full plate of surprises that include hints about hybrid vigor.
- Humans
Obese people can misjudge body size
Survey finds that many overweight individuals consider their body size normal and healthy despite having health problems
- Life
Climate not really what doomed large North American mammals
Prevalence of a dung fungus over time suggests megafauna extinctions at end of last ice age started before vegetation changed.
- Health & Medicine
Marathoners’ hearts stressed, but not necessarily by heart attacks
Detailed imaging of runners’ hearts before and after races doesn’t find signatures of heart attacks
- Space
Sun may not be a ‘Goldilocks’ star
The stars that are just right to support life-bearing planets might be dimmer and longer-lived than the sun.
- Space
Revving up particles in the cosmos
Newly recorded gamma rays from a microquasar may reveal how the black holes or neutron stars powering them can accelerate particles to enormous energies.
- Health & Medicine
Mummies reveal heart disease plagued ancient Egyptians
CT scans of preserved individuals show hardening of arteries similar to that seen in people today.
- Life
Killer bees aren’t so smart
Brains are probably not what powers the invasive bee’s takeover from European honeybees
