What's the difference between null and refrigerator?

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.

Refrigerator


Definition:

  • (n.) That which refrigerates or makes cold; that which keeps cool.
  • (n.) A box or room for keeping food or other articles cool, usually by means of ice.
  • (n.) An apparatus for rapidly cooling heated liquids or vapors, connected with a still, etc.

Example Sentences:

  • (1) This study was designed to examine the effect of the storage configuration of skin and the ratio of tissue-to-storage medium on the viability of skin stored under refrigeration.
  • (2) Cat corneas were stored at refrigerator temperatures in M-K medium (TC-199, 5% dextran), modified M-K medium (TC-199, 1% chondroitin sulfate), or on the intact globe in moist chambers for intervals of one to nine days.
  • (3) The brewery kept winning trophies at the Australian International Beer Awards year in, year out, yet its head brewer refused to send beer east until he could guarantee refrigerated transport.
  • (4) With few exceptions, there is no alteration in cellular morphology if the brain is refrigerated after death, and fixed by immersion within 3 hours.
  • (5) The results suggest that shipment and long-term storage of freeze-dried foot-and-mouth disease virus antigens is possible for use in the ELISA in the absence of refrigeration.
  • (6) Annual savings in tonnes of CO 2 Install 2 kilowatt solar PV panels 0.4 Buy a new A++ refrigerator if yours is more than 4 years old, and only use a small-screen TV 0.1 Use LED or fluorescent lights where you currently have halogen lights installed 0.1 Buy an automated system to turn off appliances when not in use; get a meter that shows actual energy use and use it to monitor your household 0.1 Only use your washing machine and dishwasher when full to capacity and at lowest temperature 0.1 Never use the tumble dryer 0.1 Get rid of the freezer if you can, and replace your small appliances with "eco" varieties 0.1 Car (1.5 tonnes of CO 2 ) There is one car for every two people in the UK, and each one travels an average of about 9,000 miles a year.
  • (7) Fluorescent pseudomonads were shown to constitute a second group of predominant pseudomonads constituting up to 19.3% of the total population after 8 days of refrigerated storage.
  • (8) Fish skin gelatin showed much better blocking activity than hydrolyzed porcine gelatin, and it still had the practical advantage of remaining fluid even under refrigeration.
  • (9) Samples stored at frozen (-20 degrees C) or refrigerated (4 degrees C) temperature retained at least 90% of the initial ampicillin concentration throughout the 47-day study period.
  • (10) Refrigerate for at least four hours until the pudding feels firm to the touch.
  • (11) Samples were taken after 0.8 and 24 hours, whereas half of these last two analyses were carried out in material left at room temperature, and the other half in refrigerated diets.
  • (12) Therefore, the results indicate that refrigerated parenteral nutrition bags can be administered directly to the patient without waiting for the mixture to warm up, anytime the length of the infusion system is over 145 cm.
  • (13) A gradual decrease in the number of viable L. monocytogenes cells was observed in juice and sauce held at 21 degrees C. In contrast, the organism died rapidly when suspended in commercial tomato ketchup at 5 and 21 degrees C. Unlike low-acid raw salad vegetables such as lettuce, broccoli, asparagus, and cauliflower on which we have observed L. monocytogenes grow at refrigeration temperatures, tomatoes are not a good growth substrate for the organism.
  • (14) Twenty-six (33%) of 79 refrigerators with foods that grew L monocytogenes contained at least one food isolate of the same strain as that in the corresponding patient, a frequency much higher than would be expected by chance (P less than .001).
  • (15) Fetal mesencephalic tissue was grafted into the lateral ventricle following pregraft refrigeration in calcium-free magnesium-free buffer at 4 degrees C. Fetal mesencephalic tissue was hibernated for 5, 12, 16, 20, 24, 28, 32 hours (group A, B, C, D, E, F and G, respectively).
  • (16) Updated at 6.49pm BST 10.36am BST Shaun Walker reports from Torez that the victims' bodies are being brought to three railway cars, apparently with refrigerator capability, which are standing at the train station in the town of Torez, several miles from the crash site.
  • (17) Delays in the postmortem enucleation and refrigeration of potential donor corneas was shown to be detrimental to the functioning of the endothelium.
  • (18) fluids and admixtures that had been stored at refrigerated temperatures were determined.
  • (19) The origin was the contamination of parenteral nutrition admixture from a resting place in the refrigerator of the parenteral mixture preparation room.
  • (20) The light absorbance of the clarified HPA digestion product was measured directly, after a brief incubation period, and was stable to storage of samples in diffuse daylight for at least 2 d. Proteinase produced by growth in refrigerated whole milk of as few as 2.5 X 10(6) cfu ml-1 of Pseudomonas fluorescens AR11 was detected.