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18920
I was disappointed in “Blood relatives.” It ignored the pioneering work by people at the company Somatogen, now known as Baxter Hemoglobin Therapeutics. They first published work on a recombinant hemoglobin for use as a blood substitute in Nature in 1990. Later, they demonstrated definitively that many of the problems associated with blood substitutes were […]
- Health & Medicine
Blood Relatives
After decades of research, several companies are about to release the first line of artificial blood products.
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18919
Your recent article on oxygen deprivation interested me greatly. As a jump pilot (hauling skydivers), I visit moderately high altitudes regularly. On a typical busy day, I may go to 14,000 feet 20 times. Granted that I don’t stay there very long, but I wonder if the harmful effects are cumulative. Peter Danes San Diego, […]
- Health & Medicine
Breathing on the Edge
Researchers are exploring how both sea-level lowlanders and high-altitude natives cope with low oxygen levels.
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From the March 28, 1931 issue
PRINCE LION-CUB SPEAKS A WORD FOR HIMSELF Milk-teeth are all he has as yet, and most of his active hours are spent in kittenish play; but let something happen to displease him, and for a moment the lion cub gives a hint of the royal terror that will clothe him when he reaches maturity. The […]
- Computing
Automatic Professor Machine
Check out an amazing, new information-dispensing device at the Web site of technology critic Langdon Winner of the Rensselaer Polytechnic Institute. Winner’s Automatic Professor Machine delivers online doctoral degrees without the student ever having to set foot on a college campus. A spoof of the distance-learning craze, the site features a news report, radio interview […]
- Math
Buses on Quantum Schedules
Anyone who has waited for a bus in the city has probably casually observed that, after an inordinately long wait, two or three buses often come along at the same time. The question of why such bunching seems to happen has prompted all sorts of speculation. Some claim that bus bunching is actually a rare […]
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Did males get bigger or females smaller?
It's time to stop assuming that standard gender differences in birds come from males getting bigger rather than from females getting smaller.
- Physics
Frigid ‘dynamite’ assembles into superatom
Although it's now the fifth element to be made into the strange state of ultracold matter known as Bose-Einstein condensate, helium may prove to be the most revealing so far because of unusually high energies within the newly condensed atoms.
- Health & Medicine
Veggies prevent cancer through key protein
An international team of researchers has identified a protein that helps compounds in some vegetables prevent cancer.
- Astronomy
Some of galaxy’s dark matter comes to light
A new study adds to the evidence that astronomers have unveiled some of the dark matter in our galaxy and that it's pretty ordinary stuff—white dwarfs, the cold, compact embers of low-mass stars.
- Earth
Thick ice scraped rock bottom in Arctic
Scuffs, scrapes, and gouges found atop undersea plateaus and ridges in the Arctic Ocean suggest that kilometer-thick ice shelves covered much of the ocean there during some previous ice ages.
