The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Medication errors are three times higher among children and infants than with adults.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Cross-section of a mature root.
John Lewis Krimmel’s painting of the Fourth of July in Centre Square Philadelphia (1812) shows the d
The oral cavity: (A) sagittal section; (B) anterior view as seen through the open mouth.
If these materials were manufactured into a tubular shape and used to replace a section of the ...