Uncategorized
- Earth
Ancient tree rings reveal past climate
Using tree-ring analysis, an international team of researchers has reconstructed the earliest record of annual climate variation.
- Health & Medicine
Urine tests can foretell bladder cancers
U.S. and Chinese researchers find that two unconventional urine tests can often predict when a person is developing bladder cancer even before tumors appear.
- Astronomy
Starry Data Support Revved-Up Cosmos
Astronomers have confirmed one of the weirdest properties of the universe: Some mysterious force is pushing galaxies apart at a faster and faster rate.
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18922
“Dyslexia gets a break in Italy” brought to mind a remark I learned in grade school decades ago. It is: In English, the word fish can be spelled ghoti. That’s gh as in tough, o as in women, and ti as in nation: “ghoti” = “fish.” English can be difficult. Norman C. Peterson Sata Monica, […]
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Dyslexia gets a break in Italy
Although dyslexia involves a common disruption of reading-related brain activity, the reading performance of people with dyslexia appears to improve if they use a language that has consistent spelling rules.
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18921
Depression is a common symptom of magnesium deficiency. Heart attacks, including fatal heart attacks, are also a common symptom of magnesium deficiency. It is thus no surprise that depressed people have a higher-than-normal rate of fatal heart attacks. Bernard Rimland Autism Research Institute San Diego, Calif.
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Depression linked to heart deaths
In a community sample, people suffering from moderate to severe depression exhibited an elevated death rate from heart disease over a 4-year study period, even if they had no discernable heart disease to begin with.
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Gene found for chloroplast movement
Scientists have found the gene that directs chloroplasts to dance out of a cell's shaded edges to soak up the sun or back into that shade when the light is too intense.
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DNA-cutting enzyme looks like scissors
One type of restriction enzyme not only cuts a DNA strand but also looks like a pair of scissors.
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Distressed amoebas can call for help
Amoebas having trouble dividing produce a chemical signal that draws other amoebas to the scene.
- Earth
POPs in the butter
Governments may be able to monitor trends in the release and transport of persistent organic pollutants by sampling butter.
- Earth
Leaden calcium supplements
Consuming calcium along with lead limits, and may prevent, the body's absorption of the toxicant.
