Glossary E

Deutsch: Epitheliale Auskleidungsflüssigkeit / Español: Fluido de revestimiento epitelial / Português: Fluido de revestimento epitelial / Français: Fluide de revêtement épithélial / Italiano: Fluido di rivestimento epiteliale

Epithelial lining fluid (ELF) is the thin layer of fluid that covers the epithelial cells lining the respiratory tract. It plays a crucial role in the lung's defense mechanism against environmental pollutants and pathogens. The ELF contains various Antimicrobial peptides, immune cells, and antibodies that help in trapping and neutralizing harmful substances inhaled from the environment. Its composition and volume can be affected by exposure to air pollutants, smoking, and respiratory diseases, impacting its ability to protect the lungs.

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An Epithelium is a membranous cellular tissue that covers a free surface or lines a tube or cavity of an animal body and serves especially to enclose and protect the other parts of the body, to produce secretions and excretions, and to function in assimilation.

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- Equal-area: An equal-area (equivalent) projection is One of a class of map projections that preserves area relationships between the map and the surface of the Earth. On an equal-area projection,

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An Equalizing charge is a controlled overcharge of a battery bank for the purpose of restoring equality of charge in all cells.

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An Equilibrium ratio, radioactive is the total Concentration of radon Decay Products (RDPs) present divided by the Concentration that would exist if the RDPs were in radioactive equilibrium with the radon gas concentration which is present.

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An Equilibrium, radioactive is a state in which the formation of Atoms by Decay of a parent radioactive isotope is equal to its rate of disintegration by radioactive decay.

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An Equipment Sanitization is the removal of Microorganisms and fat, protein, and Mineral residues in milking equipment through use of water, heat, and chemicals.

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An equity is in the Environmental sense, the planned dispersement of toxic or waste facilities in regions throughout the socioeconomic strata.

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An Equivalent Method is any process or protocol, whether sampling or analytical, which can be demonstrated as an acceptable alternative to the reference or standard process or protocol.

An Ergonomics is applied science that investigates the impact of people's physical environment on their health and comfort (e.g., determining the proper chair height for computer operators).

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