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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

By middle adulthood, most individuals and established and confident in their careers By middle adulthood, most individuals and established and confident in their careers
(a) The Dmanisi cranium (right) shows similarities to early African H. erectus including the Narioko (a) The Dmanisi cranium (right) shows similarities to early African H. erectus including the Narioko
A factory replacement unit for a CSFI unit that has individual injectors at the ends that go into ... A factory replacement unit for a CSFI unit that has individual injectors at the ends that go into ...
Sequencing a large chromosome by individual sequence determination of cloned fragments in sequences Sequencing a large chromosome by individual sequence determination of cloned fragments in sequences
Brain metabolism in a schizophrenic individual (left) and a normal individual (right). These scans o Brain metabolism in a schizophrenic individual (left) and a normal individual (right). These scans o
Relative lifetime risk of schizophrenia Relative lifetime risk of schizophrenia
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