What's the difference between persistent and recalcitrant?

Persistent


Definition:

  • (a.) Inclined to persist; having staying qualities; tenacious of position or purpose.
  • (a.) Remaining beyond the period when parts of the same kind sometimes fall off or are absorbed; permanent; as, persistent teeth or gills; a persistent calyx; -- opposed to deciduous, and caducous.

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) If the method was taken into routine use in a diagnostic laboratory, the persistence of reverse passive haemagglutination reactions would enable grouping results to be checked for quality control purposes.
  • (3) We considered the days of the disease and the persistence of symptoms since the admission as peculiar parameters between the two groups.
  • (4) The remaining case had a calibre persistent submucosal artery within the caecum that was found incidentally in a resection specimen.
  • (5) The difference in HDL and HDL2 cholesterol concentrations between the MI+ and MI- groups or between the MI+ and CHD- groups persisted after adjustment by analysis of covariance for the effect of physical activity, alcohol intake, obesity, duration of diabetes, and glycemic control.
  • (6) Since the advance and return of sperm inside the tubes could facilitate the interaction of sperm with secretions participating in its maturation, the persistent infertility after vasectomy could be related to the contractile alteration that follows the excessive tubal distention.
  • (7) An experimental Anaplasma marginale infection was induced in a splenectomized mule deer (Odocoileus hemionus hemionus) which persisted subclinically at least 376 days as detected by subinoculation into susceptible cattle.
  • (8) TR was classified as follows: severe (massive systolic opacification and persistence of the microbubbles in the IVC for at least 20 seconds); moderate (moderate systolic opacification lasting less than 20 seconds); mild (slight systolic opacification lasting less than 10 seconds); insignificant TR (sporadic appearance of the contrast medium into the IVC).
  • (9) They had learned through hard experience what Frederick Douglass once taught -- that freedom is not given, it must be won, through struggle and discipline, persistence and faith.
  • (10) Short incubations with heparin (5 min) caused a release of the enzyme into the media, while longer incubations caused a 2-8-fold increase in net lipoprotein lipase secretion which was maximal after 2-16 h depending on cell type, and persisted for 24 h. The effect of heparin was dose-dependent and specific (it was not duplicated by other glycosaminoglycans).
  • (11) The first patient, an 82-year-old woman, developed a WPW syndrome suggesting posterior right ventricular preexcitation, a pattern which persisted for four months until her death.
  • (12) But not only did it post a larger loss than expected, Amazon also projected 7% to 18% revenue growth over the busiest shopping period of the year, a far cry from the 20%-plus pace that had convinced investors to overlook its persistent lack of profit in the past.
  • (13) Channel activation persists through the process of platelet isolation and washing and is manifested in higher measured values of [Ca2+]cyt and [Ca2+]dt in the "resting state."
  • (14) Gastro-intestinal surgery is only indicated if haemorrhage persists after a period of observation.
  • (15) Psychiatric morbidity is further increased when adjuvant chemotherapy is used and when treatment results in persistent arm pain and swelling.
  • (16) A newborn presenting with persistent umbilical stump bleeding should be screened for factor XIII deficiency when routine coagulation tests prove normal.
  • (17) This competence persists over the eight measurement points.
  • (18) To investigate the possibility that an abnormality of gastric emptying exists in duodenal ulcer and to determine if such an abnormality persists after ulcer healing, scintigraphic gastric emptying measurements were undertaken in 16 duodenal ulcer patients before, during, and after therapy with cimetidine; in 12 patients with pernicious anemia, and in 12 control subjects.
  • (19) Thus it appears that a portion of the adaptation to prolonged and intense endurance training that is responsible for the higher lactate threshold in the trained state persists for a long time (greater than 85 days) after training is stopped.
  • (20) persisted and was more abnormal in 23% of the cases including specific tracings in 37%.

Recalcitrant


Definition:

  • (a.) Kicking back; recalcitrating; hence, showing repugnance or opposition; refractory.

Example Sentences:

  • (1) Based on the principles of adaptational mutations and genetic exchange of catabolic activities, it becomes possible to select and engineer microorganisms that are suitable for the degradation of recalcitrant compounds.
  • (2) A prospective, randomized, double-blind, placebo-controlled multicentre study assessed the clinical efficacy and safety of pulsed electromagnetic limb ulcer therapy (PELUT) in the healing of recalcitrant, predominantly venous leg ulcers.
  • (3) We present a patient whose genital warts were recalcitrant to treatment.
  • (4) Isotretinoin (Accutane Capsules) is a synthetic vitamin A compound used for treatment of recalcitrant cystic acne.
  • (5) Such gene cassettes or operons can be transferred into suitable microbial hosts for extending and custom designing the pathways for rapid degradation of recalcitrant compounds.
  • (6) Of the 30 patients with warts, most of which were recalcitrant, 14 were cured and the remaining 16 showed marked improvement.
  • (7) This procedure is a simple and effective method for safe office treatment of patients with recalcitrant recurrent erosion.
  • (8) The thermal cycle sequencing procedures are advantageous because they allow fast and simple semiautomation of the sequencing reaction; make possible the direct DNA sequencing of PCR products, bacterial colonies and phage plaques; require only femtomoles of template DNA; eliminate the requirement of an independent primer annealing step; remove the requirement of denatured plasmids for sequencing double-stranded templates; and use a highly thermostable DNA polymerase for sequencing through potential recalcitrant secondary structure domains and large linear double-stranded DNA templates such as lambda derivatives.
  • (9) To study the human teratogenicity of this agent, we investigated 154 human pregnancies with fetal exposure to isotretinoin, a retinoid prescribed for severe recalcitrant cystic acne.
  • (10) The biosynthesis of prostaglandins (PG) in biopsies from 9 patients with recalcitrant psoriasis was studied before, during, and after treatment with 8-methoxy-psoralen and long-wave ultraviolet light (UVA).
  • (11) The Dec+ mutants had also acquired the capacity to metabolize other recalcitrant branched hydrocarbons such as 3,6-dimethyloctane and 2,6-dimethyldecane.
  • (12) Levamisole should be tried in recalcitrant chronic candidoses and bacterial infections not responding to specific antibiotic treatment.
  • (13) Thus, combination therapy is recommended for treatment of recalcitrant cases of bacterial endocarditis caused by N. mucosa.
  • (14) If the holding phase is sufficiently prolonged, a reduction in the number and complexity of operative procedures needed for recurrent and recalcitrant cases can be expected.
  • (15) Treatment of associated systemic disorders may improve the ulcers, but lesions may be recalcitrant and persist for months to years.
  • (16) Cyclosporine, an immunosuppressive drug, is effective in the treatment of recalcitrant psoriasis.
  • (17) In recalcitrant cases, however, entrapment of the first branch lateral plantar nerve should be suspected.
  • (18) These autonomous movements were otherwise recalcitrant to therapy and were felt to arise from neural generators intrinsic to the spinal cord.
  • (19) The effectiveness and tolerance of isotretinoin have been assessed in 72 cases (34 male and 38 female) suffering from papulo-pustular acne with nodulo-cystic component recalcitrant to traditional treatments.
  • (20) The government’s strategy is clearly based on a deep confidence that it has time, that it won’t be forced back to the polls by a recalcitrant Senate, that it will have years to reach a rapprochement with the angry states and that it will bring down two more budgets before it has to face the voters.