The horizontal fraction bar was introduced by the Arabs.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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The human body produces and destroys 15 million blood cells every second.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
Early Exposure to Alcohol and Apoptosis
The ability to roll the tongue is one of several traits that represent the dominant allele.
The “first wave” of the U.S. women’s movement met enormous opposition. The women in this 1920 ...
Literacy Development in the Early Years: Helping Children Read and Write