The stereochemistry. Specifically, for carbohydrates, the configuration at the last (highest numbered) stereocenter determines whether it's D or L form. D means it has the same configuration as (+)-glyceraldehyde; L means it has the same configuration as (-)-glyceraldehyde. Note that D and L (capital letters) are not at all the same as d and l (lower letters). The capital letters relate the configuration to glyceraldehyde, the lower case letters specify whether the substance is dextrorotatory or levorotatory. For glyceraldehyde, D is d (+) and L is l (-), but this is not always the case for other molecules.
In the medical sector, ASHA stands for Accredited Social Health Activist. ASHAs are community health workers in India who provide health education and basic healthcare services in their communities. They play a crucial role in promoting healthcare practices and connecting community members with healthcare services.
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