What's the difference between breakdown and null?

Breakdown


Definition:

  • (n.) The act or result of breaking down, as of a carriage; downfall.
  • (n.) A noisy, rapid, shuffling dance engaged in competitively by a number of persons or pairs in succession, as among the colored people of the Southern United States, and so called, perhaps, because the exercise is continued until most of those who take part in it break down.
  • (n.) Any rude, noisy dance performed by shuffling the feet, usually by one person at a time.

Example Sentences:

  • (1) Because the mitogenic action of IL 2 resembles that of some growth factors, the possible role of phosphatidylinositol breakdown in the activation of T cells by IL 2 was examined.
  • (2) It is also becoming apparent that effects of insulin and other acute regulatory agents on muscle breakdown are limited to nonmyofibrillar components.
  • (3) The coronary vasodilator adenosine can be formed in the heart by breakdown of AMP or S-adenosylhomocysteine (SAdoHcy).
  • (4) Post-operative levels of C3 breakdown products were significantly higher in atheromatic patients than in controls, most likely due to the insertion of dacron arterial prostheses in the first group.
  • (5) F(ab')2 anti-Ig stimulates the rapid breakdown of inositol phospholipids in B cells, resulting in the prolonged release of inositol (poly)phosphates and diacylglycerol.
  • (6) The kinetics of the luminescent signal with the different luciferin esters varied significantly, indicating possible differences in the rates of uptake, breakdown and enzyme inhibition.
  • (7) The muscle-protein breakdown is sustained and the released amino acids are taken up by the liver and other RE structures where they are used as substrates for energy and for synthesis of defense-related proteins.
  • (8) At follow-up, the initial presence of signs of repression was significantly more common in such initially nonregressive patients as had escaped a later psychotic breakdown.
  • (9) Third, an indirect activation of protein kinase C may occur via an increase in the rate of phosphoinositide breakdown.
  • (10) The response is dose dependent for LPA concentrations from 10(-8) to 10(-3) M. Incubation of oocytes in LPA does not induce germinal vesicle breakdown.
  • (11) The breakdown of systemic fibrinogen may be important because of the anticoagulant effect this can produce.
  • (12) The breakdown of homocysteine, via the transsulphuration pathway, was augmented by Zn deficiency.
  • (13) Parallel sections were analyzed for possible parenchymal changes associated with the BBB breakdown.
  • (14) The breakdown of answers to both questions revealed a significant partisan divide depending on people’s voting intention, with Labor supporters much more likely than Coalition backers to see the commission as a political attack and Heydon as conflicted.
  • (15) The commonest finding is a slight to moderate breakdown of BCB function without evidence of intrathecal immunoglobulin synthesis.
  • (16) HOE was the most active compound, being able to accelerate PIP2 breakdown at concentrations between 10(-12) and 10(-6) M, while in the case of HEE the effective doses ranged from 10(-11) to 10(-7) M and from 10(-9) to 10(-6) M in the case of HNE.
  • (17) The critical membrane potential difference for breakdown is therefore pulse-length independent.
  • (18) Della Roe, Dhu’s mother, said the loss of her daughter had triggered an emotional breakdown.
  • (19) With ribosomes the pH optimum of proteolytic breakdown is at about 7.
  • (20) The findings link terminal breakdown of the blood-brain barrier and extensive viral antigen expression in CSF leukocytes with experimental CDV infection resulting in death.

Null


Definition:

  • (a.) Of no legal or binding force or validity; of no efficacy; invalid; void; nugatory; useless.
  • (n.) Something that has no force or meaning.
  • (n.) That which has no value; a cipher; zero.
  • (v. t.) To annul.
  • (n.) One of the beads in nulled work.

Example Sentences:

  • (1) Measurements of acetylcholine-induced single-channel conductance and null potentials at the amphibian motor end-plate in solutions containing Na, K, Li and Cs ions (Gage & Van Helden, 1979; J. Physiol.
  • (2) DR(+) cells, however, showed no change in percentage and a lesser drop in absolute numbers, suggesting an increase with advancing disease of DR(+), Ig(-) null cells, which may represent immature B cell precursors.
  • (3) In this report we describe an improvement upon the design by Stanton and Lightfoot for a simple photographic null method to determine the kVp of a diagnostic region x-ray source.
  • (4) At least two (Rh null and the McLeod type) are responsible for congenital hemolytic disorders.
  • (5) (2) Sequences of brightness steps of like polarity (either increments or decrements) elicit positive and negative motion-dependent response components when mimicking motion in the cell's preferred and null direction, respectively.
  • (6) The analysis also involved statistical tests of a modified null hypothesis, the generation of confidence intervals (CIs) and a meta-analysis.
  • (7) The null potential of both responses became more and less negative with a decrease and an increase, respectively, in the extracellular potassium concentration.
  • (8) The null mutation of algR was generated in a mucoid derivative of the standard genetic strain PAO responsive to different environmental factors.
  • (9) Endoneurial fluid pressure (EFP) was recorded by an active, servo-null pressure system after a glass micropipette was inserted into rat sciatic nerve undergoing wallerian degeneration.
  • (10) In thymo-deprived mice (nude mice and B mice) the percentage of null cells increases during the stage of regeneration, and B mice develop a large number of Ig +-bearing cells.
  • (11) Alkaline phosphatase activity was elevated in the lymphocytes from T-CLL, cord blood and tonsils and the blast cells from Null-ALL.
  • (12) Analysis of ldlA cells has identified three classes of mutant alleles at the ldlA locus: null alleles, alleles that code for normally processed receptors that cannot bind LDL, and alleles that code for abnormally processed receptors.
  • (13) Putative null sup-38 mutations cause maternal-effect lethality which is rescued by a wild-type copy of the locus in the zygote.
  • (14) Null cells of patients with hypoplastic anemia did not produce erythroid colonies under any culture conditions.
  • (15) Comparison of simulated versus actual inheritance data demonstrates that the so-called null structural alleles actually produce functional globins.--The genetic controls in Peromyscus may be analogous to those in primates.
  • (16) A null zone and associated sudden phase-reversal of RSA were observed in stratum lucidum of CA3.
  • (17) When the stimulus is placed at a position approximately 80 degrees dorsal to the eye axis, there is no response; this area is called the null region.
  • (18) Northern blot analysis showed that Adh-1 mRNA was synthesized at wild-type levels in immature seeds of the null mutant, but dropped to 25% in mature seeds.
  • (19) Two tumours were null cell adenomas with PIs less than 0.1 and 0.2%.
  • (20) Thus this methodology offers the potential to study naturally occurring ADH electromorphs and null alleles independent of enzymatic activity assays.