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Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).
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Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
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There are approximately 3 million unintended pregnancies in the United States each year.
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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th
From 1965 to 1968, American troops in Vietnam conducted “search and destroy” missions to shatter ...
Photo of a sign taken at an emissions test facility.
The remarkably complete skull of a 3-year-old Australopithecus girl; the fossil is 3.3 million ...
Animals and Language (2 of 2)
Estimating Potential Blood Volume Loss (Part 1)