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19393
The word love needs to be more carefully defined in the study described in this article. Love may also mean finding the economic resources to give a child a better future. Wolf’s description of Taiwanese mothers giving their children away when “socially acceptable alternatives” were available is reminiscent of our society’s advice to young unwed […]
By Science News -
Mother and Child Disunion
Data on extensive giveaways of daughters by their mothers in northern Taiwan a century ago may challenge influential theories of innate maternal sentiments.
By Bruce Bower -
The Bad Seed
Researchers are racing to identify tumor-forming stem cells in skin, lung, pancreatic, and many other cancers.
By John Travis -
19392
Your article describes how the male bean weevil’s spiked reproductive part damages the female’s reproductive tract to reduce the chance that she will mate with other males. Could this also explain the barbs on the organ of the domesticated tom cat? I have read that the pain of copulation induces the female’s ovulation, but I […]
By Science News -
19391
The article about tuberculosis states that Robert Koch in 1882 was the first person to link a particular microbe to a disease. References indicate that Armauer Hansen demonstrated in 1868 that Mycobacterium leprae was associated with the tissues of leprosy patients. He may not have had Koch’s postulates to prove this linkage, but many credit […]
By Science News -
MathMapping Scientific Frontiers
Can computer visualization help identify turning points and milestones in scientific discovery?
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HumansLetters from the March 13, 2004, issue of Science News
Dry hole? “Tapping sun’s light and heat to make hydrogen” (SN: 1/17/04, p. 46: Tapping sun’s light and heat to make hydrogen) seems to be delivering good news for the environment: “Clean” hydrogen can be produced from water using solar energy. This seems to me, however, to be even more horrifying than the burning of […]
By Science News -
19390
I believe a reader rushed to judgment regarding the environmental impact of splitting water to produce hydrogen for fuel (“Letters: Dry Hole?” above). The split water isn’t ultimately consumed, only recycled. Burning hydrogen reunites it with oxygen, returning water to the environment. Much more intriguing questions might concern the human-accelerated migration of water from liquid […]
By Science News -
HumansFrom the March 10, 1934, issue
High-speed photography, artificial radioactivity, and earthquake prediction.
By Science News -
AnimalsNew Green Eyes: First butterfly that’s genetically modified
Scientists have genetically engineered a butterfly for the first time, putting a jellyfish protein into a tropical African species so that its eyes fluoresce green.
By Susan Milius -
Health & MedicineMeat of the Matter: Fish, flesh feed gout, but milk counters it
Nutrition research supports the ancient notion that a diet rich in meat contributes to the development of gout, a form of arthritis common in men.
By Ben Harder -
TechSpecial Treatment: Fuel cell draws energy from waste
Researchers have created a fuel cell that breaks down organic matter in wastewater and, in the process, generates small amounts of electricity.