Uncategorized
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19399
Again, humans are implicated in the promotion and distribution of our own misery. However, if bitumen was wrongly credited with darkening the skin of mummified remains, what caused it? Robert FizekNewton, Mass. The coating on the mummies was actually a rub made up of oils, spices, salts, and tree resins. These substances, particularly the resins, […]
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Suppressed thoughts rebound in dreams
Thoughts that are consciously suppressed during the day often pop up in dreams, regardless of whether they involve emotionally charged desires, a new study suggests.
- Earth
New U.N. treaty on toxic exports
The United Nations enacted a new treaty to ban exportation of any of a list of toxic chemicals without the prior informed consent of an importing nation.
- Health & Medicine
Phthalate exposure from drugs?
Use of an ingestible prescription drug may explain the highest blood concentration of a chemical plasticizer ever observed.
- Chemistry
Microbes craft unusual crystals
Bacteria dwelling in an abandoned iron mine form unusual crystals that could help scientists look for signs of previous life on Mars.
- Health & Medicine
All Roads Lead to RUNX
Genetic mutations that predispose some people to the autoimmune diseases lupus, psoriasis, and rheumatoid arthritis appear to have a common molecular feature: They derail the work of a protein, called RUNX1, that regulates how active certain genes are.
- Humans
Letters from the April 3, 2004, issue of Science News
Lack of data? Something jumped out at me from “Telltale Charts: Is anticipating heart disease as easy as 1, 2, 3, 4?” (SN: 1/31/04, p. 72: Telltale Charts). It’s that there were no published data supporting the 50 percent rule taught for years in medical schools. I think this speaks volumes about science and medicine […]
- Math
Pinpointing Killer Asteroids
Two award-winning high school students' projects focused on new methods for pinpointing asteroids locations.
- Humans
From the March 24, 1934, issue
A meteorite photo, the discovery of triple-weight hydrogen (tritium), and a new mirror for movie production.
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Earth Image
Presented by the Universities Space Research Association, this Web site features a new photo, graphic, or illustration every day. Each one deals with an aspect of earth science. Captions provide information about the images and links to related Web material. The archive, dating back to September 2000, includes images of atmospheric phenomena, unusual cloud formations, […]
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It’s Time! Fetal lungs tell mom when to deliver baby
The maturing lungs of a fetus may signal the mother when it's time for labor.
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19398
In this article, the thesis is that wolves hunt in packs because they lose less of a carcass to ravens (37 percent loss per pair versus 17 percent loss per pack). Yet the article also states that it’s more energy efficient for wolves to hunt in pairs and that a pack is not needed to […]
