| DSST | Digit Symbol Substitution Task |
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| DSS | Digit Symbol Substitution |
|---|---|
| D.S. | degree of substitution |
| FS | freeze substitution |
| creeping eruption | <dermatology, microbiology> Also called creeping eruption. This condition results from infection of the human skin by the larvae of the dog and cat hookworm, A. Brasiliense. The result is a red, raised, tunnel on the surface of the skin. Severe itching is common. Beaches and other moist sandy areas are common locations for infection. Thiabendazole is the drug of choice. (13 Nov 1997) |
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| creeping myiasis | Myiasis causing suppurating cutaneous sinuses which may be mistaken for the creeping eruption of cutaneous larva migrans. (05 Mar 2000) |
| creeping palsy | A serious neurologic disease that results from the progressive degeneration of the motor neurons. (27 Sep 1997) |
| creeping thrombosis | A gradually increasing thrombosis involving one section of a vein after another in continuity. (05 Mar 2000) |
| creeping ulcer | An ulcer extending on one side while healing at the opposite edge, forming an undulating margin. Synonym: creeping ulcer. (05 Mar 2000) |
| amino acid substitution | The naturally occurring or experimentally induced replacement of one or more amino acids in a protein with another. If a functionally equivalent amino acid is substituted, the protein may retain wild-type activity. Substitution may also diminish or eliminate protein function. Experimentally induced substitution is often used to study enzyme activities and binding site properties. (12 Dec 1998) |
| base substitution | <molecular biology> One nucleotide base is replaced by another in a DNA molecule. This is also called a point mutation. (09 Oct 1997) |
| conservative substitution | In a gene product, a substitution of one amino acid with another with generally similar properties (size, hydrophobicity, etc), such that the overall functioning is likely not to be seriously affected. (18 Nov 1997) |
| stimulus substitution | <psychology> Learning that takes place when a conditioned stimulus is paired with an unconditioned stimulus. (12 Dec 1998) |
| substitution | 1. The act of putting one thing in the place of another, especially the chemical replacement of one element or radical by some other. 2. A defense mechanism, operating unconsciously, in which an unattainable or unacceptable goal, emotion or object is replaced by one that is attainable or acceptable. Origin: L. Substitutio, from statuere = to place (18 Nov 1997) |
| substitution mutation | A mutation caused by a nucleotide base being replaced by a different one. (09 Oct 1997) |
| substitution product | A product obtained by replacing one atom or group in a molecule with another atom or group. (05 Mar 2000) |
| substitution therapy | Replacement therapy, particularly when replacement is not physiological but entails administration of a substitute. (05 Mar 2000) |
| substitution transfusion | Removal of most of a patient's blood followed by introduction of an equal amount from donors. Synonym: exsanguination transfusion, substitution transfusion, total transfusion. (05 Mar 2000) |
| symptom substitution | An unconscious psychological process by which a repressed impulse is indirectly manifested through a particular symptom, e.g., anxiety, compulsion, depression, hallucination, obsession. Synonym: symptom formation. (05 Mar 2000) |
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