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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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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.

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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Diminishing and disappearing populations. Diminishing and disappearing populations.
A graphical representation of the marginal value theorem. A graphical representation of the marginal value theorem.
This modified model of Easton’s systems theory puts government decision makers as the source of pol This modified model of Easton’s systems theory puts government decision makers as the source of pol
Draw and label a diagram and explain how a factor-dependent transcription (rho-dependent) terminator Draw and label a diagram and explain how a factor-dependent transcription (rho-dependent) terminator
Marginal Supply - Demand Curve Marginal Supply - Demand Curve
A Production Function with Diminishing Marginal Product of Capital A Production Function with Diminishing Marginal Product of Capital
Video: Dissociative Disorders (Part 2)

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