1,375 results
- Earth
Clearing the Air: Ozone-killing bromine is on the decline
Chemical analyses of Earth's lower atmosphere show that the overall concentration of bromine, a component of some potent ozone-destroying chemicals, has dropped by 5 percent since peaking in 1998.
- Anthropology
Remnants of the Past
Sophisticated analyses suggest that some prehistoric peoples were highly skilled weavers.
- Materials Science
Concrete Nation
From ultrahigh-performance concrete that bends like metal to concrete blocks that transmit light, scientists are pushing the physical and architectural limits of this ubiquitous construction material.
- Health & Medicine
Select immune cells help marrow grafts
By excising certain immune cells from donor bone marrow, physicians have devised a new way of performing marrow transplants.
- Plants
Botany under the Mistletoe
Twisters, spitters, and other flowery thoughts for romantic moments.
- Chemistry
Nitrogen Unbound: New reaction breaks strong chemical link
Researchers have developed a new way to turn nitrogen into ammonia that could improve upon an energy-intensive, 90-year-old method used to make fertilizers.
- Agriculture
How Olives Might Enhance Potatoes—and Strawberries
Many people savor the flavor of olive oil. Few who have ever encountered the “cake” that remains after the oil is pressed, however, savor the experience. Thats because the pressed olive flesh ends up in unused, smelly heaps. In the European Union alone, olive processors produce some 8 million metric tons of these rank wastes […]
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Teams implicate new gene in prostate cancer
A newly discovered gene may, in rare cases, cause prostate cancer or, more commonly, raise a man's risk of developing the disease.
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They’re Sequencing a What?
Announcements of new targets for genome sequencing are bringing celebrity to lesser-known twigs on the tree of life.
- Chemistry
Nutty and fungi-ble taxol sources
The active ingredient in the anticancer drug taxol has turned up in hazelnuts and fungi.
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A mild objection: This article on lichens mentioned that lichens are composed of fungi and algae, a type of protist, as if it were a given that all agree to. While it is true that the majority of taxonomists would classify an alga as a protist, there still are a large number of modern taxonomists […]
- Chemistry
Toxic runoff from plastic mulch
Pesticide runoff from tomato fields covered with sheets of plastic can kill fish, clams, and other aquatic life.
