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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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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
Transverse Breaks the shaft of a bone across its longitudinal axis; the break is in the fibula, the
Scorpions, Spiders and Sharks: Electron-Microscope Images
An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution
Standard reduction potentials of the major respiratory electron carriers
Find the final velocity of the object
To rotate a matrix along the z-axis