The human brain consumes vast amounts of energy, which is almost exclusively generated from a form of metabolism that requires oxygen. While the efficient and timely delivery of oxygen is known to be critical to healthy brain ...
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In chemistry, concentration is defined as the abundance of a constituent divided by the total volume of a mixture. Four types can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration. The term concentration can be applied to any kind of chemical mixture, but most frequently it refers to solutes in homogeneous solutions.
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