What's the difference between expurgation and purification?

Expurgation


Definition:

  • (n.) The act of expurgating, purging, or cleansing; purification from anything noxious, offensive, sinful, or erroneous.

Example Sentences:

  • (1) One approach is less aggressive, whether as to the expurgation or excision of the surrounding area of the breast; in certain cases, treatment may be combined with radiation and the surgery minimized.
  • (2) Over a period of seven months, we evaluated the effect of this maneuver for 125 consecutive patients by means of (1) a report on the patient's reactions, completed by a nurse after she reviewed the record with the patient; (2) a report by the physician stating whether he had expurgated the record for patient use, and recording his observations of patient and family reaction; (3) a questionnaire mailed to patients after discharge.
  • (3) the clearing of the theoretical field through expurgating all pre-scientific ideologies jeopardizing the growth of scientific concepts; and b) a positive-constructive one, or the actual building up of a science through the production of the formal-abstract object, using ontically indeterminate raw material.
  • (4) The film's absence from our screens is almost as long as the 30-year ban on Lady Chatterley's Lover, which was, of course, always available in an expurgated version.
  • (5) Thus, it was considered that axillary expurgation was needed, but that excision of nodes in the cerebrum and cerebellum was not essential in every case.

Purification


Definition:

  • (n.) The act of purifying; the act or operation of separating and removing from anything that which is impure or noxious, or heterogeneous or foreign to it; as, the purification of liquors, or of metals.
  • (n.) The act or operation of cleansing ceremonially, by removing any pollution or defilement.
  • (n.) A cleansing from guilt or the pollution of sin; the extinction of sinful desires, appetites, and inclinations.

Example Sentences:

  • (1) During enzyme purification two nucleases were identified.
  • (2) Change of steps in achieved just by varying the reaction conditions without any product purification.
  • (3) Further purification of ZAB by filtration through Sephadex G-100 gave a preparation (ZAB2) which contained the common antigen as shown by the cross-reactivity of anti-ZAB2 rat serum with seven stains of N. gonorrhoeae.
  • (4) Stable factor-dependent B-cell hybridomas were used to monitor the purification of the growth factor from the supernatant of a clonotypically stimulated mouse helper T-cell clone.
  • (5) After immunoadsorbent purification, the final step in a purification procedure similar to that adopted for colon cancer CEA, two main molecular species were identified: 1) Material identical with colon cancer CEA with respect to molecular size, PCA solubility, ability to bind to Con A, and most important the ability to bind to specific monkey anti-CEA serum.
  • (6) Currently there are no IOC approved definitive tests for these hormones but highly specific immunoassays combined with suitable purification techniques may be sufficient to warrant IOC approval.
  • (7) A rapid method is described for the purification and analysis of synthetic oligonucleotides, based on reversed-phase high-performance liquid chromatography.
  • (8) The influence of exogenous mitogens (RFG, TGF beta 1 and insulin) and autocrine factor (at different step of purification) on the growth of Morris hepatoma 7777 (MH) cells was estimated by both methods.
  • (9) In a previous publication the purification and properties of two protein kinases (KI and KII) from a soluble fraction of bovine corpus luteum and the stimulation of the latter fol.
  • (10) for 48 h followed by Leydig cell isolation and purification resulted in a decrease in the maxima of hCG-induced cAMP accumulation and testosterone production by approximately 70% and approximately 55%, respectively, when compared to cells of control mice.
  • (11) These plasmids allow expression of native or truncated forms of the enzyme and easy purification of the products.
  • (12) The enzyme extracted from strains containing the recombinant plasmid was identical to N. crassa catabolic dehydroquinase by the criteria of heat stability, ammonium sulfate fractionation, immunological crossreactivity, molecular weight, and purification characteristics.
  • (13) Three triacetinases (A, B and C) were shown to undergo reciprocal conversions under storage and during some purification procedures (effect of pH, ionic strength, ion-exchange chromatography, concentration, lyophilization, etc.).
  • (14) Sindbis virus nucleocapsids were isolated from mature virions by a two-step purification method.
  • (15) The major scrapie prion protein, designated PrP 27-30, exhibited both charge and size heterogeneity after purification from infected hamster brains.
  • (16) We have used this procedure successfully during the purification of epidermal glycoproteins.
  • (17) The purification and concentration of these viruses in their monomeric forms is hazardous when conventional "tube" rotors are used since they invariably result in dissociation and aggregation of the virus particles.
  • (18) These methods can be applied to the purification and characterization of the as yet undefined secretory and circulating forms of PTHrP.
  • (19) The possibility that mammalian DNA topoisomerase II is an intracellular target which mediates drug-induced DNA breaks is supported by the following studies using 4'-(9-acridinylamino)methane-sulfon-m-anisidide (m-AMSA): (a) a single m-AMSA-dependent DNA cleavage activity copurified with calf thymus DNA topoisomerase II activity at all chromatographic steps of the enzyme purification; (b) m-AMSA-induced DNA cleavage by this purified activity resulted in the covalent attachment of protein to the 5'-ends of the DNA via a tyrosyl phosphate bond.
  • (20) These experiments may provide the basis for the expanded use of immobilized lectins for purification and characterization of hydrolases and other glycoproteins.