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."
Did you know?
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
TYPES OF RESEARCH
Research Methods
Research Methods: Advantages and Limitations
Major Findings of the High Scope Preschool Study High Scope participants showed better academic per
Sperry’s classic study of eye rotation and regeneration.