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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

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In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Listening to loud music with headphones or at rock concerts is a frequent cause of hearing loss amon Listening to loud music with headphones or at rock concerts is a frequent cause of hearing loss amon
Mechanisms of Active and Passive Immunity Mechanisms of Active and Passive Immunity
Effective listening skills demonstrate empathy to the patient and break down barriers to communicati Effective listening skills demonstrate empathy to the patient and break down barriers to communicati
Purse cover, from the Sutton Hoo burial ship. Purse cover, from the Sutton Hoo burial ship.
Bolts and screws have many different heads. The head determines what tool is needed. Bolts and screws have many different heads. The head determines what tool is needed.
Passive touch by holding the feet lightly. Passive touch by holding the feet lightly.
Video: Mechanism of enzyme action

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