The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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The horizontal fraction bar was introduced by the Arabs.
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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
Young adults usually grieve loss of a role, such as employment or the breakup of a relationship.
Milestones of Gross Motor Development in Infancy Age ranges provided are for 90% of American infant
Loss of Indian Lands, 1850–2010
A parade for Grover Cleveland in Chicago in 1892, by John Klir. Music, mirth, real drama—a president
Structural MRIs reveal cortical loss in adolescent patients with schizophrenia. Here dark blue ...