What's the difference between affinity and substantive?

Affinity


Definition:

  • (n.) Relationship by marriage (as between a husband and his wife's blood relations, or between a wife and her husband's blood relations); -- in contradistinction to consanguinity, or relationship by blood; -- followed by with, to, or between.
  • (n.) Kinship generally; close agreement; relation; conformity; resemblance; connection; as, the affinity of sounds, of colors, or of languages.
  • (n.) Companionship; acquaintance.
  • (n.) That attraction which takes place, at an insensible distance, between the heterogeneous particles of bodies, and unites them to form chemical compounds; chemism; chemical or elective affinity or attraction.
  • (n.) A relation between species or highe/ groups dependent on resemblance in the whole plan of structure, and indicating community of origin.
  • (n.) A superior spiritual relationship or attraction held to exist sometimes between persons, esp. persons of the opposite sex; also, the man or woman who exerts such psychical or spiritual attraction.

Example Sentences:

  • (1) The low affinity of several N1-alkylpyrroleethylamines suggests that the benzene portion of the alpha-methyltryptamines is necessary for significant affinity.
  • (2) These results demonstrate that increased availability of galactose, a high-affinity substrate for the enzyme, leads to increased aldose reductase messenger RNA, which suggests a role for aldose reductase in sugar metabolism in the lens.
  • (3) It has been generally believed that the ligand-binding of steroid hormone receptors triggers an allosteric change in receptor structure, manifested by an increased affinity of the receptor for DNA in vitro and nuclear target elements in vivo, as monitored by nuclear translocation.
  • (4) Because cystine in medium was converted rapidly to cysteine and cysteinyl-NAC in the presence of NAC and given that cysteine has a higher affinity for uptake by EC than cystine, we conclude that the enhanced uptake of radioactivity was in the form of cysteine and at least part of the stimulatory effect of NAC on EC glutathione was due to a formation of cysteine by a mixed disulfide reaction of NAC with cystine similar to that previously reported for Chinese hamster ovarian cells (R. D. Issels et al.
  • (5) We sought additional evidence for an inverse relationship between functional CTL-target cell affinity on the one hand, and susceptibility of the CTL-mediated killing to inhibition by alpha LFA-1 and alpha Lyt-2,3 monoclonal antibodies on the other hand.
  • (6) This theory was confirmed by product analysis and by measuring the affinity of the substrate for the enzyme by its inhibition of p-nitrophenyl glucoside hydrolysis.
  • (7) We report a series of experiments designed to determine if agents and conditions that have been reported to alter sodium reabsorption, Na-K-ATPase activity or cellular structure in the rat distal nephron might also regulate the density or affinity of binding of 3H-metolazone to the putative thiazide receptor in the distal nephron.
  • (8) ASF-II was purified to apparent homogeneity by using concanavalin A-agarose affinity chromatography, DEAE-cellulose chromatography, alumina gel adsorption, and isoelectric focussing techniques.
  • (9) The occupation of the high affinity calcium binding site by Ca(II) and Mn(II) does not influence the Cu(II) binding process, suggesting that there is no direct interaction between this site and the Cu(II) binding sites.
  • (10) Radioligand binding studies revealed the presence of a single class of high-affinity (Kd = 2-6 X 10(-10) M) binding sites for ET-1 in both cells, although the maximal binding capacity of cardiac receptor was about 6- to 12-fold greater than that of vascular receptor.
  • (11) The penicillin-resistant Enterococcus hirae R40 has a typical profile of membrane-bound penicillin-binding proteins (PBPs) except that the 71 kDa PBP5 of low penicillin affinity represents about 50% of all the PBPs present.
  • (12) The enzyme was solubilized by Triton X-100 and purified approximately 480-fold by gel filtration and affinity chromatography on alanine methyl ketone-AH-Sepharose 4B.
  • (13) Only estrogenic hormones are bound with high affinity.
  • (14) These results indicate that both the renal brush-border and basolateral membranes possess the Na(+)-dependent dicarboxylate transport system with very similar properties but with different substrate affinity and transport capacity.
  • (15) This novel mechanism of receptor regulation, named transmodulation, should be distinguished from the reduction in total receptor number caused by the homologous ligand (downregulation) and from the change in affinity produced by the binding of agonists or antagonists to the same receptor site.
  • (16) Neurotensin (NT) is an endogenous brain tridecapeptide for which high affinity binding sites exist in the central nervous system.
  • (17) In lactate medium the capacity of each AIB carrier is unchanged but its affinity is reduced to one-third.
  • (18) The telencephalon of teleost fish shows high affinity uptake for D-[3H]aspartate, intermediate levels of GABAergic markers and low levels of cholinergic enzymes.
  • (19) In all immunized rabbits the antisera obtained with the 7 alpha-derivative had a higher affinity and a narrower specificity than the antiserum obtained with the 7 beta-derivative.
  • (20) The binding parameters indicate that the principal activating effect of UMP is not simply to increase the affinity of the enzyme for glucose.

Substantive


Definition:

  • (a.) Betokening or expressing existence; as, the substantive verb, that is, the verb to be.
  • (a.) Depending on itself; independent.
  • (a.) Enduring; solid; firm; substantial.
  • (a.) Pertaining to, or constituting, the essential part or principles; as, the law substantive.
  • (n.) A noun or name; the part of speech which designates something that exists, or some object of thought, either material or immaterial; as, the words man, horse, city, goodness, excellence, are substantives.
  • (v. t.) To substantivize.

Example Sentences:

  • (1) Alternatives for the selection of substantive clinical attributes, the overall structural format into which categories are organized, and construction procedures used in developing a psychopathologic taxonomy are elaborated, as are a number of criteria for evaluating the taxonomy's utility and efficacy.
  • (2) Further it is argued that there is a need to amalgamate the substantive, conceptual, and methodological facets of research.
  • (3) Among the implications of the less-than-impressive substantive results of the MWTA is the lesson that while a crisis can tilt the political balance in favor of regulatory legislation, it cannot as readily produce the consensus required to sustain that regulation at the levels promised in the legislation.
  • (4) Wicker's (this issue) article on substantive theorizing outlines an approach to theory and research that helps communicate the structure and process of doing research on a complex area.
  • (5) Our findings demonstrate the long lasting substantivity of doxycycline hydrochloride on periodontally diseased root surfaces and supports the concept of using root surfaces as a substrate for the deposition and slow release for local tetracycline delivery.
  • (6) Twenty-five years of persistent research at the Jena Institute of Bacterial Animal Diseases have yielded substantive results of relevance to general knowledge and veterinary practice in the following fields: Mycoplasma species in farm animals-isolation, demands on culturing substrate, and differentiation; Virulence testing; Development, production, and application of diagnostic preparations; Development to full application maturity of diagnostic techniques and concepts for control of several mycoplasmal infections of relevance in terms of economy.
  • (7) Redesigning the dream was identified as the integrative theme in the substantive theory that described how family members gradually modify their beliefs about organ transplantation and develop attitudes and beliefs to meet the challenge of living with continual unpredictability.
  • (8) These data suggest that although a shortened form of the HIT may be useful with aged persons, research exploring the substantive bases for creating a shortened version of the HIT is nevertheless necessary.
  • (9) Unfortunately, a large number of potential compounds are unsuitable for use in dentifrices because they lack "substantivity", produce undesirable side-effects, or are incompatible with toothpaste ingredients.
  • (10) Methodological and substantive recommendations for future research are made and a discussion of possible mechanisms is presented.
  • (11) When the influence of castration on adduct formation was investigated, adduct levels in kidneys of castrated females were higher than those in sham-operated females, but adduct levels in kidneys of the castrated male animals were not substantively different from those seen in sham-operated male controls.
  • (12) Based on a discrete-time hazard modeling approach, the results substantiate that the occupational task activities--substantive complexity and physical demands--are key elements of the work environment that are evaluated against nonwork alternatives.
  • (13) "I think when critics don't have a substantive alternative to offer they reach for the 'out of touch' criticism," he said.
  • (14) Findings revealed two substantive processes, the touching process and acquiring a touching style, neither of which has been previously reported.
  • (15) Quantitative information is the substantive input to decisions on whether oral and maxillofacial surgeons wish to go where they appear to be going, and if so why, and if not, why not?
  • (16) The Kinnaird report was very critical of defence acquisition processes up to that point, because approval had often been “sought before whole-of-life costs are well defined and, for many projects, prior to substantive engagement with industry.
  • (17) What came out instead was a substantive document, involving concrete steps towards defusing the crisis.
  • (18) But political will to uplift the lot of women substantively was lacking.
  • (19) But I reckon Laura Tingle is dead right on the substantive challenge - the statement just shows the country can no longer coast.
  • (20) The union's assistant general secretary Diana Holland said: "We will not be calling Easter strike action as we focus on substantive talks through Acas.