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Affinity

The tendency to be pleasant and tolerant in social occasions
Affinity (Agreeableness) is a pleasant and tolerant tendency in social occasions. In contemporary times Personality Psychology Affinity is a personality structure Five main factors One is the individual differences reflected in cooperation and social harmony.
Affinity is also manifested in the phenomenon that the virus has affinity for certain internal organs, or that the virus must reproduce in certain cells corresponding to it. Also called tropism.
Chinese name
Affinity
Foreign name
affinity,tropism
Alias
Tropism
Meaning
It indicates that the tissue has strong adhesion to a certain dye
Usage
Use of specific terms

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concept

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affinity,tropism
〔1〕 Generally speaking, its concept is somewhat vague, but sometimes it is used as a specific term. For example, in histology, it is regarded as a term indicating that the tissue has strong binding force to a certain dye. In addition, in embryology, it means that cells or tissues are connected with each other. In this case, it is called positive affinity and negative affinity respectively according to whether the connection tendency is tight or separate. Use decalcification or Trypsin Treatment and other methods can free cells from embryos, and data on affinity can be obtained from experiments on these cells. Sometimes it can be distinguished as the affinity between cells in the same embryonic region (Germany Intrablastenatische Affinita-t) and the affinity between cells in different embryonic regions (Germany Interfaziale Affinitat). Histiocyte It has special affinity. If different tissue cells are dissociated and mixed together, the same kind of cells will converge together.

Tropism

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〔2〕 Also called tropism. Viruses can only develop and reproduce in living cells in an active state, and all kinds of viruses can only reproduce in their corresponding cells, which is called virus affinity (or specifically Cell affinity , or cytotropism). For example, influenza virus in human and mouse trachea epithelial cells Medium reproduction, Escherichia coli bacteriophage It multiplies in Escherichia coli. The phenomenon that various viruses have affinity for certain internal organs in particular is called visceral affinity (visceral affinity). According to which organs they have affinity for, they are called organ affinity. Therefore, there are some terms such as lung affinity (lung affinity) and nerve affinity (nerve affinity). Viruses that are adsorbed to any organ are called retro affinity (pan affinity). For example, influenza virus is lung affinity, rabies virus is neural affinity, and poxvirus is pan affinity. However, in fact, there are many situations that are difficult to distinguish. In particular, the virus with universal affinity may not reproduce in any organ, but can reproduce in specific cells common to all organs. In addition, tropism also means inflection.