What's the difference between develop and null?

Develop


Definition:

  • (v. t.) To free from that which infolds or envelops; to unfold; to lay open by degrees or in detail; to make visible or known; to disclose; to produce or give forth; as, to develop theories; a motor that develops 100 horse power.
  • (v. t.) To unfold gradually, as a flower from a bud; hence, to bring through a succession of states or stages, each of which is preparatory to the next; to form or expand by a process of growth; to cause to change gradually from an embryo, or a lower state, to a higher state or form of being; as, sunshine and rain develop the bud into a flower; to develop the mind.
  • (v. t.) To advance; to further; to prefect; to make to increase; to promote the growth of.
  • (v. t.) To change the form of, as of an algebraic expression, by executing certain indicated operations without changing the value.
  • (v. t.) To cause to become visible, as an invisible or latent image upon plate, by submitting it to chemical agents; to bring to view.
  • (v. i.) To go through a process of natural evolution or growth, by successive changes from a less perfect to a more perfect or more highly organized state; to advance from a simpler form of existence to one more complex either in structure or function; as, a blossom develops from a bud; the seed develops into a plant; the embryo develops into a well-formed animal; the mind develops year by year.
  • (v. i.) To become apparent gradually; as, a picture on sensitive paper develops on the application of heat; the plans of the conspirators develop.

Example Sentences:

  • (1) Without medication atypical ventricular tachycardia develops, in the author's opinion, most probably when bradycardia has persisted for a prolonged period.
  • (2) By presenting the case history of a man who successively developed facial and trigeminal neural dysfunction after Mohs chemosurgery of a PCSCC, this paper documents histologically the occurrence of such neural invasion, and illustrates the utility of gadolinium-enhanced magnetic resonance scanning in patient management.
  • (3) A 2.5-month-old child with cyanotic heart disease who required long-term PGE1 infusions; developed widespread periosteal reactions during the course of therapy.
  • (4) An automated continuous flow sample cleanup system intended for rapid screening of foods for pesticide residues in fresh and processed vegetables has been developed.
  • (5) Clinical signs of disease developed as early as 15 days after transition to the experimental diets and included impaired vision, decreased response to external stimuli, and abnormal gait.
  • (6) In addition, this pretreatment protocol did not modify the recipient immune response against B-lymphocyte alloantigens which developed in unsuccessful transplants.
  • (7) He is also the foremost theorist of the Tijuana-San Diego border in terms of what happens when the urban culture of the developing world collides with that of the developed world.
  • (8) A new balloon catheter has been developed for angioplasty.
  • (9) It is followed by rapid neurobehavioral deterioration in late infancy or early childhood, a developmental arrest, plateauing, and then either a course of retarded development or continued deterioration.
  • (10) Oculomotor paresis with cyclic spasms is a rare syndrome, usually noticeable at birth or developing during the first year of life.
  • (11) A new and simple method of serotyping campylobacters has been developed which utilises co-agglutination to detect the presence of heat-stable antigens.
  • (12) Virtually every developed country has some form of property tax, so the idea that valuing residential property is uniquely difficult, or that it would be widely evaded, is nonsense.
  • (13) In some cervical nodes, a few follicles, lymphocyte clusters, and a well-developed plasmocyte population were also present.
  • (14) We determined whether serological investigations can assist to distinguish between chronic idiopathic autoimmune thrombocytopenia (cAITP) and immune-mediated thrombocytopenia in patients at risk to develop systemic lupus erythematosus (SLE); 82 patients were seen in this institution for the evaluation of immune thrombocytopenia.
  • (15) beta-Endorphin blocked the development of fighting responses when a low footshock intensity was used, but facilitated it when a high shock intensity was delivered.
  • (16) Some commentators have described his ship, now facing more delays after a decade in development, as little more than a Heath Robinson machine.
  • (17) To examine the central nervous system regulation of duodenal bicarbonate secretion, an animal model was developed that allowed cerebroventricular and intravenous injections as well as collection of duodenal perfusates in awake, freely moving rats.
  • (18) Since 1987, it has become possible to obtain immature ova from the living animal and to let them mature, fertilize and develop into embryos capable of transplantation outside the body.
  • (19) One developed recurrent dislocation of the shoulder.
  • (20) The planned development (october 1989) is also depicted.

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.