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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).
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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
The path of sound waves through the outer, middle, and inner ear.
Young adults usually grieve loss of a role, such as employment or the breakup of a relationship.
Albert Bierstadt, Puget Sound on the Pacific Coast.
A typical heated zirconia oxygen sensor, showing the sensor signal circuit that uses the outer ...
Maintaining Weight Loss
Gas pressure loss and venturi flowmeter