| 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) |
|---|---|
| tensile strength | The maximum stress a material subjected to a stretching load can withstand without tearing. (12 Dec 1998) |
| yield strength | The amount of stress at which a permanent (plastic) deformation in a component becomes measurable (usually taken as 0.2% permanent strain). (05 Mar 2000) |
| ultimate strength | The maximum stress achieved prior to failure of a component on a single application of the load. (05 Mar 2000) |
| fatigue strength | The stress level below which a particular component will survive an indefinite number of load cycles (typically about 50% of the ultimate strength of the component). (05 Mar 2000) |
| arrhenic medication | Treatment of disease by means of the organic preparations of arsenic, the cacodylates, and methylarsinates. (05 Mar 2000) |
| maintenance medication | Medication taken to stabilise an illness or symptoms of illness. (05 Mar 2000) |
| medication | 1. Impregnation with a medicine. 2. <pharmacology> The administration of remedies. 3. A medicament. Origin: L. Medicatio (05 Jan 1998) |
| medication, ace-inhibitor | Agents that inhibit ACE (angiotensin-converting enzyme), thereby acting as vasodilators (really as anti-vasoconstrictors), lightening the stress load on the heart. (12 Dec 1998) |
| medication, anti-coagulant | Blood thinners. Drugs, like heparin and warfarin, used as blood-thinners to prevent blood clots and to maintain open blood vessels. (12 Dec 1998) |
| medication, anti-platelet | Platelet-blocking drugs. Drugs that, like aspirin, reduce the tendency of platelets in the blood to clump and clot. (12 Dec 1998) |
| medication, beta-blocker | Drugs that antagonise the action of adrenaline (a beta adrenergic substance) and relieve stress to the heart muscle. Beta-blockers are often used to slow the heart rate or lower the blood pressure. (12 Dec 1998) |
| medication, clot-dissolving | Drugs used to dissolve blood clots. Agents such as plasminogen-activator (t-pa) and streptokinase that are effective in dissolving clots and re-opening arteries. Used, for example, in the treatment of heart attacks. Clot-dissolvers are also called thrombolytic agents. (12 Dec 1998) |
| medication errors | Errors in prescribing, dispensing, or administering medication with the result that the patient fails to receive the correct drug or the proper dose of the drug in the treatment of his disease. (12 Dec 1998) |
| medication systems | Overall systems, traditional or automated, to provide medication to patients. (12 Dec 1998) |