| PHI | passive hemagglutination inhibition; past history of illness; phosphohexose isomerase; physiological... |
|---|---|
| PhI | Pharmacopoeia Internationalis |
| f | Greek letter phi; magnetic flux; osmotic coefficient |
| PSI | posterior sagittal index; problem solving information; prostaglandin synthetic inhibitor; psychologi... |
| psi | pounds per square inch |
| PSI | Parenting Stress Index |
|---|---|
| PSI | Physiologic Stability Index |
| Psi | Pseudouridine |
| delta psi | electrical potential |
| PSI | per square inch |
| psi | Pounds force of pressure per square inch. (05 Dec 1998) |
|---|---|
| psi factor | A protein responsible for the specific initiation of the RNA polymerase-catalyzed reaction at the promoter sites of genes. (05 Mar 2000) |
| psi phenomenon | A phenomenon that includes both psychokinesis and extrasensory perception; the extrasensory mental processes involved in the alleged ability to send or receive telepathic messages. (05 Mar 2000) |
| bacteriophage phi 6 | Virulent bacteriophage and sole member of the genus cystovirus that infects pseudomonas species. The virion has a segmented genome consisting of three pieces of doubled-stranded DNA and also contains a unique lipid-containing membrane. (12 Dec 1998) |
| bacteriophage phi x 174 | The type species of the genus microvirus. A prototype of the small virulent DNA coliphages, it is composed of a single strand of supercoiled circular DNA, which on infection, is converted to a double-stranded replicative form by a host enzyme. (12 Dec 1998) |
| peptide phi | A 27-amino acid peptide with histidine at the n-terminal and isoleucine amide at the c-terminal. The exact amino acid composition of the peptide is species dependent. The peptide is secreted in the intestine, but is found in the nervous system, many organs, and in the majority of peripheral tissues. It has a wide range of biological actions, affecting the cardiovascular, gastrointestinal, respiratory, and central nervous systems. (12 Dec 1998) |
| phi | 1. The 21st letter of the Greek alphabet. 2. (Φ) Symbol for phenyl; potential energy; magnetic flux. 3. (φ) Symbol for plane angle; volume fraction; quantum yield; the dihedral angle of rotation about the N-Ca bond associated with a peptide bond. (05 Mar 2000) |
| phi phenomenon | An illusion of movement, which occurs by means of successive visual impressions at intervals of 1/15 to 1/20 sec; when an occluder is passed from one eye to the other while a small distant light is observed, the light seems to move with the occluder in exophoria, but in an opposite direction in oesophoria. (05 Mar 2000) |
| phi X 174 | <molecular biology> Bacteriophage of E. Coli with a single stranded DNA genome and an icosahedral shell. This was the first DNA phage to be fully sequenced: the genome consists of 10 genes, some of which are overlapping genes. (18 Nov 1997) |
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