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19457
I am wondering why the subject of genetically modified crops didn’t enter the discussion of diminishing plant diversity in this article. When genes from bacteria, insects, and other totally unrelated organisms are inserted into the genome of a plant, we have no idea what effect this will have on plant diversity and survival. The effect […]
- Agriculture
The Ultimate Crop Insurance
A new treaty renews hope that the waning diversity in agricultural crops can be slowed, and important genes preserved, both in the field and in gene banks.
- Health & Medicine
Figuring Out Fibroids
Researchers now have a better understanding of which women develop fibroids and what causes them.
- Math
College Football, Rankings, and Wandering Monkeys
The system for ranking college football teams to see who plays for the national championship has flaws.
- Humans
From the September 1, 1934, issue
A new German zeppelin under construction, fossils of giant pigs, and word recognition in dogs.
- Humans
A Lewis Carroll Scrapbook
Charles Lutwidge Dodgson, a lecturer in mathematics at the University of Oxford, is better known as Lewis Carroll, author of Alice’s Adventures in Wonderland and other works. A scrapbook kept by Dodgson is now available online, via the Library of Congress. It contains a variety of items, including newspaper clippings, illustrations, and photographs. The Web […]
- Tech
Tiny Timepiece: Atomic clock could fit almost anywhere
Physicists have shrunk the high-tech heart of an atomic clock to the size of a rice grain.
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19456
Your readers should be aware that the increased fatal cancer risk posed by annual whole-body CT scans, although still quite high, is in fact almost five times lower than that stated in this article, which says that annual scans from age 45 to 75 would increase a person’s lifetime risk of dying from cancer by […]
- Health & Medicine
Scanning Risk: Whole-body CT exams may increase cancer
Adults who routinely get whole-body CT scans without medical cause are exposing themselves to doses of radiation that may increase their risk of dying from cancer.
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Cancer Flip-Flop: Gene acts in both proliferation and control of growth
Scientists have identified what might be a new class of cancer-controlling genes that alternates between halting and promoting cancer.
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Cultured Readers: Chinese kids show new neural side of dyslexia
Brain disturbances that underlie the inability to read a non-alphabetic script, such as Chinese, differ from those already implicated in the impaired reading of alphabetic systems, such as English.
- Health & Medicine
Alzheimer’s Advance: Omega-3 fatty acid benefits mice
A diet that includes a key omega-3 fatty acid found in fish prevents some memory loss in mice that develop a disease resembling Alzheimer's.
