Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Stem cell shift may lead to infections, leukemia
Aging of blood-producing stem cells could be responsible for the relatively high incidence of infections and myeloid leukemia in the elderly.
- Humans
From the June 29, 1935, issue
Science and engineering in a photo-mural, organs grown outside the body, and inexpensive air conditioning.
- Humans
Evolution at the Academies
The National Academies have unveiled a new resource for the public on evolution. The Web site provides access to books, position statements, and additional material on evolution education and research. Go to: http://nationalacademies.org/evolution/
- Health & Medicine
Running Interference: Fresh approach to fighting inflammation
Two experimental drugs stop inflammation in mice by preserving a natural inflammation inhibitor.
- Health & Medicine
Sleepy teens haven’t got circadian rhythm
High schools that begin classes as early as 7:30 a.m. deprive teenagers of sleep, and attempts to reset an adolescent's biological clock fail to solve the problem.
- Humans
Letters from the July 2, 2005, issue of Science News
Chlorine’s fate? “Special Treatment: Tiny technology tackles mega messes” (SN: 4/23/05, p. 266), on the reaction of nanoparticles of iron with trichloroethane (TCE) contaminating an aquifer, states that the TCE is converted “into ethane.” What happens to the chlorine stripped off the TCE? Is it converted into insoluble inorganic compounds or is it available to […]
- Health & Medicine
Stepping Off the Scale
While walking, obese people alter their gait to minimize both energy expenditure and the stress on their knee joints.
- Humans
From the June 22, 1935, issue
Beauty in a police radio transmitter, a new aid in controlling diabetes, and mathematical help for cake bakers.
- Health & Medicine
Attack on Elephantiasis: Antibiotic offers weapon against tropical scourge
An antibiotic called doxycycline can cure people of elephantiasis, a parasitic disease, by killing the bacterium that the parasite needs to survive.
- Humans
Letters from the June 25, 2005, issue of Science News
Dark secret? “Dark Influence: Most of the universe’s matter is out of sight, but not out of mind” (SN: 4/23/05, p. 264) made me wonder about the possibility of a continuum of matter. Could part of the problem in identifying dark matter be that only part of the spectrum of matter is observable by our […]
- Health & Medicine
Alcohol increases bacterium’s virulence
Drinking alcohol can increase the ability of one type of bacteria to cause disease.
- Health & Medicine
Ready-to-eat spinach bears tough microbes
Bagged spinach may contain a significant number of bacteria, many of which are resistant to several antibiotics.
