What's the difference between null and steward?

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.

Steward


Definition:

  • (v. t.) To manage as a steward.
  • (n.) A man employed in a large family, or on a large estate, to manage the domestic concerns, supervise other servants, collect the rents or income, keep accounts, and the like.
  • (n.) A person employed in a hotel, or a club, or on board a ship, to provide for the table, superintend the culinary affairs, etc. In naval vessels, the captain's steward, wardroom steward, steerage steward, warrant officers steward, etc., are petty officers who provide for the messes under their charge.
  • (n.) A fiscal agent of certain bodies; as, a steward in a Methodist church.
  • (n.) In some colleges, an officer who provides food for the students and superintends the kitchen; also, an officer who attends to the accounts of the students.
  • (n.) In Scotland, a magistrate appointed by the crown to exercise jurisdiction over royal lands.

Example Sentences:

  • (1) Recovery was assessed by means of a modified Steward coma scale.
  • (2) A 30-year-old steward told the Guardian that the conditions under the bridge were "cold and wet and we were told to get our head down [to sleep]".
  • (3) Molly Prince, managing director of the company, refuted the Guardian story with some lustily expressed but random facts: "CPUK have not only purchased tents for everyone (some stewards wanted to use their own but it was too wet to put them up, they insisted in having a go!).
  • (4) And it can be a good idea to apply to do a one-off to see if there’s an appetite to do more and whether you have enough people willing to be stewards.
  • (5) Dressed in saris, the hijras gave an air-steward style demonstration of how to wear the belt while directing saucy, suggestive remarks at the drivers watching them.
  • (6) "These actions are not coming from the stewards, they are coming from the lads."
  • (7) On Monday, police took over security at stadiums in Durban and Cape Town amid protests by stewards.
  • (8) Officers were pelted with missiles, including shards of glass from shattered shopfronts, as stewards from the demonstration called for calm and tried to separate police from protesters.
  • (9) We have created no framework in which owners are required to commit to companies over time, to steward their assets and to act as trustees for the living, breathing social organisations that companies are.
  • (10) I was raised in a traditional way and regard it as my job to be a steward of the land.
  • (11) In a real sense it not only pits 36-year-old Smith, a former BBC producer and lobbyist, against Dai Davies, former shop steward at the down defunct steel works, but Blairism against Bevanism and Nye's ghost.
  • (12) The action spread by phone in "a domino effect", stewards said.
  • (13) Two Navy stewards waited on us, only entering the room to serve food and drinks,” Comey writes.
  • (14) Ruth Dear Ruth… Will Hutton Photograph: Guardian There is a danger of utopian myth in this, rather like the Labour left and shop steward movement in the 1960s.
  • (15) "From redundancy payments through to the failed DMI project, the BBC has not always been the steward of public money that it should have been," said Tony Hall, the corporation's director general.
  • (16) What we found, particularly here in Parramatta, is that we have large numbers of clients coming who just want general information,” says Steward.
  • (17) Two hours later, as we trooped off into blinding Caribbean sun, the steward was still beaming.
  • (18) Then 26% of people said they trusted David Cameron and George Osborne most on the economy, compared with 24% who preferred Ed Miliband and Ed Balls as stewards of the nation's finances.
  • (19) Ronaldo side-stepped him and the invader was quickly brought to ground by a rugby tackle from one of the chasing stewards.
  • (20) "It is important that you follow all instructions given by stewards," said a spokesman.