What's the difference between composition and heterogeneity?

Composition


Definition:

  • (n.) The act or art of composing, or forming a whole or integral, by placing together and uniting different things, parts, or ingredients.
  • (n.) The invention or combination of the parts of any literary work or discourse, or of a work of art; as, the composition of a poem or a piece of music.
  • (n.) The art or practice of so combining the different parts of a work of art as to produce a harmonious whole; also, a work of art considered as such. See 4, below.
  • (n.) The act of writing for practice in a language, as English, Latin, German, etc.
  • (n.) The setting up of type and arranging it for printing.
  • (n.) The state of being put together or composed; conjunction; combination; adjustment.
  • (n.) A mass or body formed by combining two or more substances; as, a chemical composition.
  • (n.) A literary, musical, or artistic production, especially one showing study and care in arrangement; -- often used of an elementary essay or translation done as an educational exercise.
  • (n.) Consistency; accord; congruity.
  • (n.) Mutual agreement to terms or conditions for the settlement of a difference or controversy; also, the terms or conditions of settlement; agreement.
  • (n.) The adjustment of a debt, or avoidance of an obligation, by some form of compensation agreed on between the parties; also, the sum or amount of compensation agreed upon in the adjustment.
  • (n.) Synthesis as opposed to analysis.

Example Sentences:

  • (1) The resulting dose distribution is displayed using traditional 2-dimensional displays or as an isodose surface composited with underlying anatomy and the target volume.
  • (2) The urine compositions of the European mole Talpa europaea and of the white rat Rattus norvegicus (albino) kept on a carnivore's diet were compared.
  • (3) To determine the influence of cetylpyridinium chloride (CPC) adsorption on the wettability and elemental surface composition of human enamel, with and without adsorbed salivary constituents, surface-free energies and elemental compositions were determined.
  • (4) Abruptly changing cows from one feeding system to another did not influence milk yield, milk composition, or body weight gain.
  • (5) In spite of important differences in size, chemical composition, polymer density, and configuration, biological macromolecules indeed manifest some of the essential physical-chemical properties of gels.
  • (6) Protein composition was determined in mesenteric lymph chylomicrons from fat-fed rats.
  • (7) In vitro transcription products were analyzed for their 5' end sequences and their oligonucleotide compositions.
  • (8) The antigenic composition of an extract of rat dust, as a source of aeroallergens for rat-sensitive individuals, has been investigated and compared to the antigenic composition of rat saliva and urine.
  • (9) With better understanding of metabolic and compositional requirements, great advances have been made in the area of total parenteral nutrition.
  • (10) The usefulness of the proposed method is obvious in cases where the composition of a precipitate on LM scale is to be compared with the LM appearance of the surrounding tissue.
  • (11) This study examined the association between diet composition, particularly dietary fat intake, and body-fat percentage in 205 adult females.
  • (12) The specific rates of degradation of L-arginine-AMC, gly-proline-AMC, N-alpha-benzoyl-L-arginine-AMC and N-[p-toluene-sulphonyl]gly-pro-arginine-AMC were significantly greater in that group, indicating that the composition of their gingival crevicular fluid was different from that of the gingivitis group.
  • (13) Variations in light chain composition, particularly fast and slow myosin light chain 1, appeared to occur independently of the variations in heavy chain composition, suggesting that some myosin molecules consist of mixtures of slow- and fast-type subunits.
  • (14) Changes in the plasma lipid composition are observed in patients and animals with malignancy and certain other diseases that are consistent with peroxidation of plasma lipoprotein lipids.
  • (15) These two crystallins were compared with respect to their native molecular masses, subunit structures, peptide mapping and amino acid compositions in order to establish the identity of each crystallin.
  • (16) Essential characteristics of the composite bone cement included a homogeneous and uniform fiber distribution, and a minimal increase in apparent viscosity of the polymerizing cement.
  • (17) Histochemical and immunocytochemical staining of the outgrowths with reagents that depict epithelial, myoepithelial, and lactating alveolar cells (peanut lectin alone, monoclonal and polyclonal antibodies to rat caseins) indicate similar cell compositions and arrangements for all outgrowths irrespective of their source; these are also similar to the mammary glands of the perphenazine-stimulated or lactating hosts.
  • (18) The PC modification was affected by the fatty acid composition of the exogenous PC species.
  • (19) Intrinsic bending of the 527-bp fragment (bend center approximately at bp 240) was represented as a composite of at least two components located near bp 170 and near bp 260.
  • (20) It is inferred that in this experimental model (1) high-density lipoproteins are probably excreted in the glomerular filtrate, (2) alterations in the composition of the excreted lipoproteins may occur during their passage through the nephron.

Heterogeneity


Definition:

  • (n.) The state of being heterogeneous; contrariety.

Example Sentences:

  • (1) Size analysis of the solubilized IgA IP employing sucrose density gradient ultracentrifugation, indicated that these were heterogeneous, with a size generally larger than 19 S.
  • (2) Over the past decade the use of monoclonal antibodies has greatly advanced our knowledge of the biological properties and heterogeneity that exist within human tumours, and in particular in lung cancer.
  • (3) The 0.1 M phosphate buffer eluant was electrophoretically heterogeneous and did not elicit the production of bactericidal antibodies in rabbits.
  • (4) HCECs display an unusual combination of cytokeratin IFs and neurofilaments, together with vimentin, and are heterogeneous with respect to their IF makeup.
  • (5) mycoides cluster' at a similarity level (S) of 66% and which remained undivided at up to 78% S. At higher similarity levels, these strains fell heterogeneously into mixed sub-phenons containing strains of both subspecies.
  • (6) Much information has accumulated on the isolation and characterization of a heterogeneous group of molecules that inhibit one or more of the bioactivities of interleukin 1.
  • (7) The combined results suggest that any possible heterogeneity in the L-CAM genes is not reflected in the size of either the mRNA or protein.
  • (8) The diagnosis of "autism" has been used to encompass a heterogeneous group of children who may differ in etiology, clinical manifestations, prognosis, and needed treatment.
  • (9) Osteogenesis imperfecta is the common term for a heterogeneous group of heritable disorders of connective tissue with lethal and nonlethal forms.
  • (10) High pressure liquid chromatography combined with radioimmunoassay showed marked heterogeneity of SPLI and SLI.
  • (11) The heterogeneity of obesity may be demonstrated by the shape of fat distribution and the prolactin response to insulin hypoglycaemia.
  • (12) The antibody-hapten profiles revealed that the DNCB-fed animalss contained predominatly IgG2 in their serum by the time of their initial bleedings, whereas sensitized animals still contained a considerable proportion of more acidic antibodies having marked charge heterogeneity.
  • (13) We detected no evidence for heterogeneity in this sample, but when we combined results with previously published lod scores, heterogeneity was statistically significant.
  • (14) The operational meaning of all the resulting theorems is that when any of them appear to be refuted experimentally, the presence of more than one parallel transport pathway (that is, of membrane heterogeneity transverse to the direction of transport) can be inferred and analyzed.
  • (15) Possible interpretations of this manifestation of biological heterogeneity are discussed.
  • (16) The heterogeneity of the muscarinic receptors was examined both in vivo and in radioligand binding experiments.
  • (17) This work shows that during 3MeDAB hepatocarcinogenesis, AFP gene activation occurs in heterogenous cell populations and according to different cellular patterns.
  • (18) The resistance to cephalosporins of 48 heterogeneous methicillin-resistant strains ("RH" mutants) of Staphylococcus pyogenes var.
  • (19) Results indicate that nystatin is distributed heterogeneously in the gastrointestinal tract.
  • (20) The major scrapie prion protein, designated PrP 27-30, exhibited both charge and size heterogeneity after purification from infected hamster brains.