| ¿µ¹® | exchange transfusion | ÇÑ±Û | ±³È¯¼öÇ÷ |
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| IHL | International Homeopathic League |
|---|---|
| NARAL | National Abortion Rights Action League |
| NLNE | National League for Nursing Education |
| SCE | Sister Chromatid Exchange; Àڸſ°»öºÎü ±³È¯ |
| AE | above-elbow [amputation]; acrodermatitis enteropathica; activation energy; adult erythrocyte; advers... |
| ILAE | International League Against Epilepsy |
|---|---|
| NLN | National League for Nursing |
| AE | Anion exchange |
| ET | Exchange transfusion |
| XIP | Exchange-inhibitory peptide |
| league | 1. A measure of length or distance, varying in different countries from about 2.4 to 4.6 English statute miles of 5.280 feet each, and used (as a land measure) chiefly on the continent of Europe, and in the Spanish parts of America. The marine league of England and the United States is equal to three marine, or geographical, miles of 6080 feet each. The English land league is equal to three English statute miles. The Spanish and French leagues vary in each country according to usage and the kind of measurement to which they are applied. The Dutch and German leagues contain about four geographical miles, or about 4.6 English statute miles. 2. A stone erected near a public road to mark the distance of a league. Origin: Cf. OE. Legue, lieue, a measure of length, F. Lieue, Pr. Lega, legua, It. & LL. Lega, Sp. Legua, Pg. Legoa, legua; all fr. LL. Leuca, of Celtic origin: cf. Arm. Leo, lev (perh. From French), Ir.leige (perh. From English); also Ir. & Gael. Leac a flag, a broad, flat stone, W. Llech, such stones having perh. Served as a sort of milestone (cf. Cromlech). An alliance or combination of two or more nations, parties, or persons, for the accomplishment of a purpose which requires a continued course of action, as for mutual defense, or for furtherance of commercial, religious, or political interests, etc. "And let there be 'Twixt us and them no league, nor amity." (Denham) A league may be offensive or defensive, or both; offensive, when the parties agree to unite in attacking a common enemy; defensive, when they agree to a mutual defense of each other against an enemy. The Holy League, an alliance of Roman Catholics formed in 1576 by influence of the Duke of Guise for the exclusion of Protestants from the throne of France. Solemn League and Covenant. See Covenant,2. The land league, an association, organised in Dublin in 1879, to promote the interests of the Irish tenantry, its avowed objects being to secure fixity of tenure fair rent, and free sale of the tenants' interest. It was declared illegal by Parliament, but vigorous prosecutions have failed to suppress it. Synonym: Alliance, confederacy, confederation, coalition, combination, compact, cooperation. Origin: F.ligue, LL. Liga, fr. L. Ligare to bind; cf. Sp. Liga. Cf. Ally a confederate, Ligature. Source: Websters Dictionary (01 Mar 1998) |
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| League of Red Cross Societies | The international federation of national Red Cross and similar societies. (05 Mar 2000) |
| anion exchange | The process by which an anion in a mobile (liquid) phase exchanges with another anion previously bound to a solid, positively charged phase, the latter being an anion exchanger. It takes place when Cl- is exchanged for OH- in desalting. The reaction is Cl- (in solution) + (OH- on anion exchanger+) → (Cl- on anion exchanger) + OH- (in solution); combined with cation exchange, NaCl is removed from solution. Anion exchange may also be used chromatographically, to separate anions, and medicinally, to remove an anion (e.g., Cl-) from gastric contents or bile acids in the intestine. (05 Mar 2000) |
| anion exchange resin | <chemistry> A resin with fixed cationic groups which is used in chromatography to separate anionic molecules. A High molecular weight, insoluble polymers that contain functional anionic groups capable of undergoing exchange reactions. These resins are used for ion exchange chromatography, as gastric antacids, hypocholesteraemics, etc. (14 Aug 2000) |
| maternal-foetal exchange | Exchange of substances between the maternal blood and the foetal blood through the placental barrier. It excludes microbial or viral transmission. (12 Dec 1998) |
| cation exchange | The process by which a cation in a liquid phase exchanges with another cation present as the counter-ion of a negatively charged solid polymer (cation exchanger). A cation-exchange reaction in removal of the Na+ of a sodium chloride solution is RSO3-H+ + Na+ → RSO3-Na+ + H+ (R is the polymer, RSO3- is the cation exchanger); if this is combined with the anion-exchange reaction, NaCl is removed from the solution (desalting). Cation exchange may also be used chromatographically, to separate cations, and medicinally, to remove a cation; e.g., H+, from gastric contents, or Na+ and K+ in the intestine. See: anion exchange. (05 Mar 2000) |
| cation-exchange resin | See: cation exchange, cation exchanger. (05 Mar 2000) |
| cation exchange resins | High molecular weight insoluble polymers which contain functional cationic groups that are capable of undergoing exchange reactions; used in various types of chromatography; also to treat hyperkalaemia. (12 Dec 1998) |
| respiratory exchange ratio | The ratio of the net output of carbon dioxide to the simultaneous net uptake of oxygen at a given site, both expressed as moles or STPD volumes per unit time; in the steady state, respiratory exchange ratio is equal to the respiratory quotient of metabolic processes. (05 Mar 2000) |
| charge exchange | <radiobiology> Phenomenon in which an ion colliding with a molecule (or an atom) neutralises itself by capturing an electron from the molecule or atom, and transforming the molecule or atom into a positive radical or ion. (13 Nov 1997) |
| chromatography, ion exchange | Separation technique in which the stationary phase consists of ion exchange resins. The resins contain loosely held small ions that easily exchange places with other small ions of like charge present in solutions washed over the resins. (12 Dec 1998) |
| plasma exchange | Removal of plasma and replacement with various fluids, e.g., fresh frozen plasma, plasma protein fractions (ppf), albumin preparations, dextran solutions, saline. Used in treatment of autoimmune diseases, immune complex diseases, diseases of excess plasma factors, and other conditions. (12 Dec 1998) |
| pulmonary gas exchange | The exchange of oxygen and carbon dioxide between alveolar air and pulmonary capillary blood. (12 Dec 1998) |
| sister chromatid exchange | An aberrant crossing-over event in which there is an exchange of segments between the sister chromatids of a chromosome, either between the sister chromatids of a meiotic tetrad or between the sister chromatids of a duplicated somatic chromosome. It can be induced by ultraviolet and ionizing radiation or by mutagenic agents and is observed by autoradiography. (12 Dec 1998) |
| needle-exchange programs | Organised services for exchange of sterile needles and syringes used for injections as a potential means of reducing the transmission of infectious diseases. (12 Dec 1998) |
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