Uncategorized
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Alarming Butterflies and Go-Getter Fish
Recent studies suggest that there may be more ways to create new species than Darwin imagined.
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Depression therapies converge in brain
Depressed people who benefit from either talk therapy or antidepressant drug treatment may experience similar brain changes, according to a pair of new studies.
- Health & Medicine
Herpes virus homes in on cancer target
Herpes simplex virus 1 has an affinity for cells with a mutation that marks many tumors, indicating how the virus may be refined as a cancer therapy and that certain new drugs might attack herpes itself.
- Astronomy
Landing data confirm Eros’ primitive nature
Gamma rays detected by the NEAR Shoemaker spacecraft after it landed on asteroid 433 Eros add to evidence that the rock is unaltered since the birth of the solar system.
- Tech
Optics oddity challenges microchip makers
An obscure optical effect called instrinsic birefringence has suddenly appeared as a threat to technology for making denser, faster microchips.
- Earth
Atlantic coast may be in for a pounding
The above-average number and strength of hurricanes in the North Atlantic during the past 6 years may signal the beginning of a threatening weather trend for the United States, the Caribbean, and Central America.
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18937
Your story on trace amines in the brain neglected to mention the most interesting and well-studied of these, the powerful endogenous hallucinogen N,N-dimethyltryptamine (DMT). DMTs role in endogenous psychosis was studied intensively in the 1960s, before research with these drugs became so controversial. We recently subjected DMT to intensive study in a group of normal […]
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Obscure brain chemicals draw new attention
Long-dismissed brain chemicals called trace amines have receptors on human cells and may play a role in depression and schizophrenia.
- Materials Science
Environment’s stuck with nonstick coatings
Some nonstick coatings such as Teflon break down at high temperatures into undesirable compounds that persist in the environment.
- Math
Art of Pursuit
The simple mathematical concept of a pursuit curve can serve as the starting point for creating wonderfully intricate artistic designs. Four “bugs” chasing one another produce an intriguing pattern of nested, rotated squares. Courtesy of John Sharp. Pursuit curves based on a star-shaped polygon. Courtesy of John Sharp. Example of a pattern in which the […]
- Math
Art of Pursuit
The simple mathematical concept of a pursuit curve can serve as the starting point for creating wonderfully intricate artistic designs. Four “bugs” chasing one another produce an intriguing pattern of nested, rotated squares. Courtesy of John Sharp. Pursuit curves based on a star-shaped polygon. Courtesy of John Sharp. Example of a pattern in which the […]
- Math
Art of Pursuit
The simple mathematical concept of a pursuit curve can serve as the starting point for creating wonderfully intricate artistic designs. Four “bugs” chasing one another produce an intriguing pattern of nested, rotated squares. Courtesy of John Sharp. Pursuit curves based on a star-shaped polygon. Courtesy of John Sharp. Example of a pattern in which the […]
