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Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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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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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Brain scans showing the white-matter pathways involved in everyday learning: Brain scans showing the white-matter pathways involved in everyday learning:
Three toddlers sit on the floor playing with a toy. Three toddlers sit on the floor playing with a toy.
Massage promotes proper growth and development of infants. Massage promotes proper growth and development of infants.
The hazmat training pyramid. It is important to train from the ground up, starting with a firm grasp ... The hazmat training pyramid. It is important to train from the ground up, starting with a firm grasp ...
Structures of other important isoprenoids Structures of other important isoprenoids
Sign Language Sign Language
Video: Simple Diffusion - gases and nonpolar compounds transport

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