Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
CT heart scans: Risk climbs as age at screening falls
CT scans are increasingly used to investigate heart blockages, but their X rays can increase cancer risk.
- Health & Medicine
Taking a Jab at Cancer
Vaccines that train a person's immune system to kill cancerous cells, when combined with drugs that block tumor defense mechanisms, are starting to show promise.
- Humans
Letters from the August 11, 2007, issue of Science News
Sum kids While testing was done on 5- or 6-year-old children (“Take a Number: Kids show math insights without instruction,” SN: 6/2/07, p. 341), it would be interesting to see if this intuitive skill persists after these students are exposed to standard mathematical instruction in the higher grades. I suspect that the answer will be […]
- Humans
From the July 31, 1937, issue
Giant dragonflies from the Carboniferous period, a dust cloud obscuring stars near the sky's north pole, and a list of 13 inventions predicted to have great social significance.
- Health & Medicine
New Clues: Gene variations may contribute to MS risk
Variants of two genes encoding immune system proteins may confer a higher risk for multiple sclerosis.
- Health & Medicine
Waking Up: Brain stimulator spurs dramatic improvement years after injury
A man who spent 6 years in a minimally conscious state regained the ability to talk, eat, and move after doctors implanted electrodes deep in his brain.
- Humans
More math helps young scientists
Taking more math in high school improves students' college grades in physics, chemistry, and biology.
- Health & Medicine
A Melon for Dieters and Diabetics
Novel watermelons offer lots of taste but little sugar.
- Health & Medicine
TB medication offers pain relief
An antibiotic once used to treat tuberculosis may offer relief from chronic pain.
- Health & Medicine
Statin reduces dementia risk
A popular anticholesterol drug reduces older adults' chances of developing dementia.
- Anthropology
Red-Ape Stroll
Wild orangutans regularly walk upright through the trees, raising the controversial possibility that the two-legged stance is not unique to hominids.
- Humans
Letters from the August 4, 2007, issue of Science News
Here comes the sun When “Reaching for Rays: Scientists work toward a solar-based energy system” (SN: 5/26/07, p. 328) says that “scientists don’t expect traditional silicon-based solar cells to become competitive with fossil fuels,” one has to ask, “Ever?” Can anyone accurately predict the future price of polysilicon or of fossil fuels? Peter A. KaczowkaLenox, […]
