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Author Question: When no current flows through the coil of an electromagnetic relay it is said to be energized. (Read 23 times) |
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.