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Author Question: The power factor of an RLC circuit is defined as cos = R/Z, but the phase angle can also be ... (Read 40 times) |
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.