What's the difference between null and rival?

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.

Rival


Definition:

  • (n.) A person having a common right or privilege with another; a partner.
  • (n.) One who is in pursuit of the same object as another; one striving to reach or obtain something which another is attempting to obtain, and which one only can posses; a competitor; as, rivals in love; rivals for a crown.
  • (a.) Having the same pretensions or claims; standing in competition for superiority; as, rival lovers; rival claims or pretensions.
  • (v. t.) To stand in competition with; to strive to gain some object in opposition to; as, to rival one in love.
  • (v. t.) To strive to equal or exel; to emulate.
  • (v. i.) To be in rivalry.

Example Sentences:

  • (1) Nor is this political fantasy: at the European elections in May, across 51 authorities in the north-west and north-east, Ukip finished ahead of Labour in 18 and as its main rival in 30.
  • (2) I personally felt grateful that British TV set itself apart from its international rivals in this way, not afraid to challenge, to stretch the mind and imagination.
  • (3) Koons provoked a bigger stir with the news that he would be showing with gallery owner David Zwirner next year in an apparent defection from Zwirner's arch-rival Larry Gagosian, the world's most powerful art dealer.
  • (4) We believe Oisin has a very exciting future at the BBC.” Clarkson, May and Hammond have signed up to launch a rival show on Amazon’s TV service , while Chris Evans is currently filming a new series of the BBC’s Top Gear show with fellow presenters Matt LeBlanc and Eddie Jordan.
  • (5) Time suggests that the FBI inquiry has been extended from a relatively narrow look at alleged malpractices by News Corp in America into a more general inquiry into whether the company used possibly illegal strongarm tactics to browbeat rival firms, following allegations of computer hacking made by retail advertising company Floorgraphics.
  • (6) Pfizer kept up its efforts to get AstraZeneca to the negotiating table over its £63bn approach as it reported revenue well below Wall Street expectations, underscoring its interest in pursuing its UK rival to promote new business growth.
  • (7) Lion cubs fathered by Cecil, the celebrated lion shot dead in Zimbabwe , may already have been killed by a rival male lion and even if they were still alive there was nothing conservationists could do to protect them, a conservation charity has warned.
  • (8) Difficult to see how he could become Iraqi PM for a third term with rival sects and blocs strongly against him.
  • (9) For Argyle the result confirmed their relegation to League One, with the rival fans left to ponder wildly differing prospects next season.
  • (10) In repeated reconciliation talks overseen by the UN, the ineffectual GNA has so far failed to reach a political compromise with its Tobruk-based rivals in the east, noticeably Haftar, head of the Libyan National Army.
  • (11) Aware that her press secretary, Bernard Ingham, a former labour correspondent for the Guardian who understood the range of attitudes within trade unions, had tried to soften the impression that she saw Kinnock as another General Galtieri [Argentina’s president during the Falklands war], the draft text tried to distinguish between unions, rival parties and what the final text (the one she actually delivered) called “an organised revolutionary minority” with their “outmoded Marxist dogma about class warfare”.
  • (12) Rival lender Nationwide reported a fall in house prices of 0.2% in September , the first decrease in 17 months.
  • (13) The company’s London rivals typically spend half as much.
  • (14) Considered one of the funniest men in Washington, he injected wit into the debate, telling his rivals that former South Carolina senator Strom Thurmond had four children after age 67.
  • (15) The temporary ban on dollar clearing means that BNP's clients must engage rival banks to send transactions through the financial system in the US.
  • (16) It’s a damp squib, a bit of a nothing result,” a leading energy analyst said of a report that is widely expected to endorse provisional findings released in March , and recommend price controls on prepayment meters and setting up a customer database to help rival suppliers target customers stuck on expensive default tariffs.
  • (17) The Colorado-based tycoon is notoriously secretive and at one point looked as if he was going to mount a rival bid for the US satellite TV company.
  • (18) The letter contains confidential information that could be used by the carmakers’ rivals, he said.
  • (19) You get like three days where you have to show up?” But the younger rival managed to turn difficult questions into an opportunity to boast of his humble background and promise of change.
  • (20) Khan said the garden bridge could rival New York’s high line, a public park built on a 1.45-mile elevated former railway.