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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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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

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Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Feeding groove and phagocytosis displayed by many species of supergroup Excavata. Feeding groove and phagocytosis displayed by many species of supergroup Excavata.
The paleoanthropologist must understand these deformations in order to figure out which strata a fos The paleoanthropologist must understand these deformations in order to figure out which strata a fos
These illustrations show Ellen Craft, a slave with and without a disguise. She dressed “as a disting These illustrations show Ellen Craft, a slave with and without a disguise. She dressed “as a disting
Absorption & Stripping Design Random packing materials Absorption & Stripping Design Random packing materials
An example of an EHR screen used to order a laboratory test. An example of an EHR screen used to order a laboratory test.
Sample of a business card design. Sample of a business card design.
Video: Hierarchical Sequencing Method - Sequence Tagged Sites

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