Uncategorized
- Health & Medicine
Do zinc lozenges shorten common colds?
People taking zinc to fight a cold report less coughing, less nasal discharge, and a shorter cold than do people getting a placebo.
- Health & Medicine
Coffee linked to rheumatoid arthritis
People who drink four or more cups of coffee per day appear more likely to get rheumatoid arthritis than are those drinking less.
- Health & Medicine
Data faked in immune-system study
A researcher fabricated evidence suggesting that never-before-seen RNA-DNA-hybrid molecules play a role in creating antibodies.
- Health & Medicine
Sperm just say NO to egg cells
Sperm fertilizing an egg produce a whiff of nitric oxide.
- Health & Medicine
Marrow converted into brain cells
Scientists can now efficiently transform bone marrow into nerve cells.
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- Earth
New Concerns about Phthalates
Boys may face an eventual reproductive risk from exposure to some of the ingredients that go into many common plastics, cosmetics, and medical supplies.
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19326
As a regular platelet-aphaeresis donor, I was alarmed by your article. I would be very curious to know if the standard tubing and centrifuge harness used for aphaeresis contain DEHP. During an aphaeresis session, roughly half the blood of the donor passes through a centrifuge to be relieved of platelets before being returned to the […]
- Earth
Study gives new answer for muddy mystery
Geologists provide evidence that quartz silt in ancient seabeds doesn't come from eroded land rocks, but rather from the dissolved skeletons of tiny primitive creatures, possibly altering the fossil record and changing models of prehistoric climate and ocean geography.
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Strep infection sets off tics in some kids
Some children may have a genetic susceptibility to developing obsessive-compulsive disorder and tic ailments after a streptococcal infection.
- Humans
From the June 17, 1933, issue
STRATOSPHERE SHELL PREPARED FOR NAVIGATORS The little metal sphere that will be the stratosphere home of two men and scientific instruments for a few hours next month is rapidly being completed (SNL, May 27, ’33, p. 323). It is pictured on the front cover with Dr. Jean F. Piccard emerging at the unfinished vertex of […]
- Earth
Rocks for Kids
Can’t tell pyrite from magnetite? Looking for an entertaining, colorful introduction to rocks and minerals? The Mineralogical Society of America has created a Web site, aimed at kids, that provides information about minerals and their classification, properties, and uses. It includes a selection of games with a mineral theme. Go to: http://www.minsocam.org/MSA/K12/K_12.html
