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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

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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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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Evolutionary adaptation to a new environment via natural selection. Evolutionary adaptation to a new environment via natural selection.
A fossil leaf in low-grade coal A fossil leaf in low-grade coal
The social movement that centers on the environment has become global. In all nations, people are ... The social movement that centers on the environment has become global. In all nations, people are ...
Metric bolt (cap screw) grade markings and approximate tensile strength. Metric bolt (cap screw) grade markings and approximate tensile strength.
Environment of tRNAs at the ribosome as determined by cross-linking Environment of tRNAs at the ribosome as determined by cross-linking
An 8th grade class develops a linear model that predicts the number of cheerios (a small round ... An 8th grade class develops a linear model that predicts the number of cheerios (a small round ...
Video: Role of ATP in muscle movement

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