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The term vital stain is used by some authors to refer to an intravital stain, and by others interchangeably with a supravital stain, the core concept being that the cell being examined is still alive. In a more strict sense, the term vital staining has a meaning contrasting with supravital staining.
In anatomy the term reticuloendothelial system (abbreviated RES), often associated nowadays with the mononuclear phagocyte system (MPS), was employed by the beginning of the 20th century to denote a system of specialised cells that effectively clear colloidal vital stains (so called because they stain living cells) from the blood circulation.
The term "vital stain" is used by some authors to refer specifically to an intravital stain, and by others interchangeably with a supravital stain, the core concept being that the cell being examined is still alive. As the cells are alive and unfixed, outside the body, supravital stains are temporary in nature. [1] [2]
Once assembled, the Foldscope is about the size of a bookmark. The Foldscope weighs 8 grams [citation needed] and comes in a kit with a lens that magnifies 140X. The kit also includes magnets that can be stuck onto the Foldscope to attach it to a smartphone, allowing the user to take pictures of the magnification. [2]
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1. Red Wine. We're willing to bet that red wine stains plague white carpets more than any other surface. It's some kind of sick rule of the universe.
Fluorescent stains are, however, phototoxic, invasive and bleach when observed. This limits their use when observing living cells over extended periods of time. Non-invasive phase-contrast techniques are therefore often used as a vital complement to fluorescent microscopy in live-cell imaging applications.
Endocrinologists share uncommon symptoms of diabetes that may indicate type 1, type 2, or prediabetes. Some signs include infections and dry skin.