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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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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

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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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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

master biology chapter 22-25 master biology chapter 22-25
Sivapithecus is a Miocene ape (middle) with anatomical similarities to orangutans (left) rather than Sivapithecus is a Miocene ape (middle) with anatomical similarities to orangutans (left) rather than
These monolithic figures from Easter Island suggest the contemplative nature of philosophy, which ca These monolithic figures from Easter Island suggest the contemplative nature of philosophy, which ca
Compare the Final Code with the Documentation Compare the Final Code with the Documentation
The Nissl stain. Presented here is a Nissl-stained coronal section through the rat hippocampus, at ... The Nissl stain. Presented here is a Nissl-stained coronal section through the rat hippocampus, at ...
Chemical similarities between oxidation and synthesis of a fatty acid Chemical similarities between oxidation and synthesis of a fatty acid
Video: Magnetic resonance imaging (MRI)

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