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AnimalsCostly Sexiness: All that flash puts birds at extra risk
Distinctive his-and-her plumages increase the chance that a bird species will go extinct locally, according to an unusually far-ranging study.
By Susan Milius -
AstronomyOnce Upon a Time in the Cosmos: Using distant galaxies to study the early universe
Peering far back in time, two teams of astronomers report that they have found some of the universe's earliest galaxies.
By Ron Cowen -
PhysicsRare Events: Exotic processes probe the heart of matter
Physicists have for the first time unambiguously detected and measured the rates of certain reactions among protons, neutrons, and simple atomic nuclei.
By Peter Weiss -
ChemistryContacts could dispense drugs
Novel contact lens materials use nanoparticles to dispense drugs.
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ChemistryMatcha green tea packs the antioxidants
A green tea used in Japanese tea ceremonies contains much more of a beneficial antioxidant than ordinary green tea.
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ChemistryNuclear-waste monitoring gets close to the source
A new prototype device may make monitoring of radioactive contamination cheaper and easier.
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ChemistryCatnip repels pest
Known to repel cockroaches and mosquitoes, catnip oil also works against termites.
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This story deserves front-page status. Considering that antibiotics add to the cost of food, health care, groundwater cleanup, and the debt of poor nations, this is a potentially revolutionary development. The fact that the presence of antibiotic-resistant Enterococcus faecium has decreased with the reduction in antibiotics use in Denmark and that the incidence of diseases […]
By Science News -
Health & MedicineWeight-loss pill carries risks
The drug ephedra and its presumed active ingredient, ephedrine, provide only modest weight-loss effects and pose health risks.
By Nathan Seppa -
AstronomyAll-sky survey makes Internet debut
An atlas of some 5 million images from the Two Micron All-Sky Survey is now available online.
By Ron Cowen -
EarthMapping watersheds invites comparisons
Computerized maps of environmental features for 154 of the largest river watersheds will soon be available to the public, free of charge.
By Janet Raloff -
Health & MedicineMicrobicide thwarts AIDS virus in monkey test
A microbicidal gel applied vaginally prevents some transmission of the AIDS virus in monkeys.
By Nathan Seppa