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Author Question: The ratio of the speed of light in a vacuum to the speed of light in a substance is defined as that ... (Read 83 times) |
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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
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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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.