Uncategorized
- Astronomy
Reflecting on the Kuiper belt
A new study suggests that at least some members of the Kuiper belt, the reservoir of comets and other frozen objects that lie beyond the orbit of Neptune, reflect more sunlight and are considerably smaller than previously calculated.
- Health & Medicine
Herbal cancer remedy is chock full of drugs
An herbal remedy that had been popular among prostate cancer patients was tainted with three synthetic drugs.
- Earth
Leaden impacts of gum disease, smoking
Subtle bone loss associated with advanced gum disease can be linked to elevated lead concentrations in the blood.
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Novel enzyme provides sperm’s spark of life
A molecule in sperm triggers a fertilized egg to begin developing.
- Anthropology
Neandertals return at German cave site
Researchers who tracked down the location of a German cave where the first Neandertal skeleton was discovered in 1856 have unearthed new Neandertal finds.
- Astronomy
Magnetars: A missing link
A rare group of ultradense stars may be magnetars, objects with the strongest magnetic fields known in the universe.
- Health & Medicine
RNA interferes with cancer-cell growth
To curb the growth of cancer cells, scientists are silencing genes by introducing small strands of RNA.
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19128
Perhaps much of the controversy about evolutionary psychology devolves from forgetting some basic biological definitions. The gene is the unit of inheritance, which has a complex and imprecise relationship with the mature, viable organism that has inherited it. The unit of evolution is the individual organism. Therefore, the arguments about what is more important in […]
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Evolutionary Upstarts
Theories of the evolution of the human mind are evolving, with some researchers now presenting alternatives to the dominant notion that genetic competition for survival during the Stone Age yielded brains stocked with a bevy of instincts for specific types of thinking.
- Plants
The Wood Detective
Alex Wiedenhoeft belongs to the elite profession of wood identifier, the person to call when a crime investigator, museum curator, archaeologist, or patent attorney with an unusual client really needs to know what that splinter really is.
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19127
It occurs to me that the techniques described in this article could have a wide variety of applications outside the biological sciences. For example, imprinted high-temperature ceramic materials could be used as less-expensive catalysts in automobiles and factory emission-controls systems. And filters made from such materials might be used to greatly reduce the quantity of […]
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19126
Chocolate as heart medicine? Not for those hearts that chocolate’s caffeine sends bumping around in their ribcages, it isn’t. How about doing another article, this time on the deleterious effects of caffeine in various medical conditions (erratic hearts being just one)? Caroline VickreyBethlehem, Pa. To be told that research is putting chocolate with tea and […]
