| LIS | laboratory information system; lateral intercellular space; left intercostal space; library informat... |
|---|---|
| LISS | low-ionic-strength saline |
| CCV | channel catfish virus; conductivity cell volume |
| cond | condensation, condensed; condition, conditioned; conductivity; conductor |
| s | Greek lower case letter sigma; conductivity; cross section; millisecond; molecular type or bond; pop... |
| EC | Electrical conductivity |
|---|---|
| TOBEC | Total Body Electrical Conductivity |
| Ii | Ionic |
| IS | Ionic Strength |
| LISS | Low ionic strength solutions |
| conductivity | <radiobiology> Degree to which a substance transmits (conducts) a given physical property, such as heat or electricity. See: electrical conductivity, thermal conductivity. (09 Oct 1997) |
|---|---|
| hydraulic conductivity | Ease of pressure filtration of a liquid through a membrane; specifically, Kf = η(Q/A) (dx/dP), where Kf = hydraulic conductivity, η = viscosity of the liquid being filtered, Q/A = volume of liquid filtered per unit time and unit area, and dx/dP = reciprocal of the pressure gradient through the membrane; solute concentrations should be identical on both sides of the membrane. Also applied more loosely to measurements on a total membrane of unknown area and thickness with unmeasured fluid viscosity (K = Q/dP). (05 Mar 2000) |
| non-ionic contrast media | <radiology> A class of radiographic contrast media which do not ionise in solution, thereby decreasing effective osmolarity and toxicity. (05 Mar 2000) |
| ionic | Relating to an ion. (05 Mar 2000) |
| ionic coupling | <chemistry> The same as electrical coupling. (18 Nov 1997) |
| ionic medication | Movement of ions as a result of an applied electric field. For example the delivery of a charged molecule from the end of a micropipette without hydraulic flow. (18 Nov 1997) |
| ionic strength | Symbolised as g/2 or I and set equal to 0.5σmizi2, where mi equals the molar concentration and zi the charge of each ion present in solution; if molar concentrations (ci) are used instead of molality (and the solution is dilute), then I == 0.5(1/ρo)σcizi2 where ρo is the density of the solvent; a number of biochemically important events (e.g., protein solubility and rates of enzyme action) vary with the ionic strength of a solution. (05 Mar 2000) |
| thermal conductivity | <radiobiology> Degree to which a substance transmits heat. (basic definition, I believe, is: (heat flow) = (thermal conductivity) (temperature gradient)) (09 Oct 1997) |
| electrical conductivity | <radiobiology> Degree to which a substance conducts electric current. Can be defined by: (current density) = (conductivity) (applied electric field) Electrons and ions both contribute to current in proportion to their mobility in the system. In a plasma with a magnetic field, there is no longer a one-to-one correspondence between current and electric field. Instead, the current in each direction can be due to combinations of the electric fields in all the other directions. In this case, the current density and the electric field are vectors, and the conductivity becomes a tensor (matrix) which relates them. (09 Oct 1997) |
| electric conductivity | The capacity to conduct an electric current. Conductivity is the reciprocal of resistance. (12 Dec 1998) |
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