Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Visualizing Cancer: Images of tumors can detect gene expression
Subtle features in X-ray images of tumors let radiologists infer which genes are active in the cancerous growth.
- Health & Medicine
Early Start: Fetuses generate immune response to vaccination
A fetus can manufacture immune cells and antibodies in direct response to vaccine given to the mother during pregnancy.
- Humans
Letters from the June 2, 2007, issue of Science News
Where there’s fire Regarding “Risky Flames: Firefighter coronaries spike during blazes” (SN: 3/24/07, p. 180), was the increased death rate due to firefighters having a higher rate of heart disease than people do in other jobs? An analysis of eating habits may reveal more insight. Jim SchmitzSt. Louis, Mo. The study looked only at what […]
- Health & Medicine
Stem cells not required
Insulin-producing cells in the pancreas proliferate by cell division, unlike other body tissues, which regenerate from adult stem cells.
- Humans
From the May 22, 1937, issue
Hidden beauty revealed, an electric french horn, and safer toy balloons.
- Humans
Hot Competition: Students display winning projects
High school students from 51 countries gathered in Albuquerque last week to compete for scholarships and other prizes at the 2007 Intel International Science and Engineering Fair.
- Health & Medicine
Circadian Fix: Viagra may lessen effects of jet lag
Sildenafil, the male-impotence drug marketed as Viagra, helps laboratory rodents recovery from circadian disruptions similar to jet lag.
- Health & Medicine
Chocolate Constituent Bests Fluoride
The beans used to make chocolate can also render a tooth-decay-fighting extract; unfortunately, it's bitter, not chocolaty.
- Health & Medicine
Nail-gun injuries shoot up
Nail-gun injuries among do-it-yourself carpenters have tripled since 1991.
- Anthropology
When female chimps become baby killers
Although long thought to be rare, instances in which female chimps band together to kill other females' infants occur fairly regularly under certain circumstances.
- Health & Medicine
Migraines in men linked to heart attack risk
Men who experience migraine headaches are somewhat more likely to have heart attacks than are other men.
- Health & Medicine
Dangerous History
The genome of the TB bacterium has small but significant pockets of diversity, giving scientists new targets for preventing and treating the disease.
