What's the difference between persist and sustain?

Persist


Definition:

  • (v. i.) To stand firm; to be fixed and unmoved; to stay; to continue steadfastly; especially, to continue fixed in a course of conduct against opposing motives; to persevere; -- sometimes conveying an unfavorable notion, as of doggedness or obstinacy.

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%.

Sustain


Definition:

  • (v. t.) To keep from falling; to bear; to uphold; to support; as, a foundation sustains the superstructure; a beast sustains a load; a rope sustains a weight.
  • (v. t.) Hence, to keep from sinking, as in despondence, or the like; to support.
  • (v. t.) To maintain; to keep alive; to support; to subsist; to nourish; as, provisions to sustain an army.
  • (v. t.) To aid, comfort, or relieve; to vindicate.
  • (v. t.) To endure without failing or yielding; to bear up under; as, to sustain defeat and disappointment.
  • (v. t.) To suffer; to bear; to undergo.
  • (v. t.) To allow the prosecution of; to admit as valid; to sanction; to continue; not to dismiss or abate; as, the court sustained the action or suit.
  • (v. t.) To prove; to establish by evidence; to corroborate or confirm; to be conclusive of; as, to sustain a charge, an accusation, or a proposition.
  • (n.) One who, or that which, upholds or sustains; a sustainer.

Example Sentences:

  • (1) In this study of ten consecutive patients sustaining molten metal injuries to the lower extremity who were treated with excision and grafting, treatment with compression Unna paste boot was compared with that with conventional dressing.
  • (2) Electrophysiologic studies are indicated in patients with sustained paroxysmal ventricular tachycardia, ventricular fibrillation or aborted sudden death.
  • (3) The study examined the sustained effects of methylphenidate on reading performance in a sample of 42 boys, aged 8 to 11, with attention deficit-hyperactivity disorder (ADHD).
  • (4) It is suggested that the rapid phase is due to clearance of peptides in the circulation which results in a fall to lower blood concentrations which are sustained by slow release of peptide from binding sites which act as a depot.
  • (5) Photograph: Guardian The research also compiled data covered by a wider definition of tax haven, including onshore jurisdictions such as the US state of Delaware – accused by the Cayman islands of playing "faster and looser" even than offshore jurisdictions – and the Republic of Ireland, which has come under sustained pressure from other EU states to reform its own low-tax, light-tough, regulatory environment.
  • (6) In order for the club to grow and sustain its ability to be a competitive force in the Premier League, the board has made a number of decisions which will strengthen the club, support the executive team, manager and his staff and enhance shareholder return.
  • (7) But if you want to sustain a long-term relationship, it's important to try to develop other erotic interests and skills, because most partners will expect and demand that.
  • (8) Hypnosis might be looked upon as a method by which an unscrupulous person could sustain such a state of powerlessness in a victim.
  • (9) Eight other children (20%) had normal or borderline elevation of CPK-MB fraction and EKG abnormalities combined with abnormal echocardiograms or radionuclide angiograms, and were considered to have sustained cardiac concussion.
  • (10) Communicating sustainability is a subtle attempt at doing good Read more And yet, in environmental terms it is infinitely preferable to prevent waste altogether, rather than recycle it.
  • (11) We found no statistically significant difference in one-year, biochemically validated, sustained cessation rates between the group offered the long-term follow-up visits (12.5%) and the group given the brief intervention (10.2%).
  • (12) The conversion of orotate to UMP, catalyzed by the enzymes of complex II, was increased at 3 days (+42%), a rise sustained to 14 days.
  • (13) Histamine (10(-6)-10(-4) M) induced concentration-dependent increases in tone and Ca2+i, but these responses were not sustained.
  • (14) Our studies have shown that infarcted dogs which exhibit inducible sustained ventricular tachycardia had late potentials and could be distinguished from those with no arrhythmias by the following QRS characteristics.
  • (15) These agents have been well-tolerated and generally produce a high incidence of sustained improvements in neutrophil counts and marrow morphology, although hemoglobin and platelet counts have generally not been altered.
  • (16) "I hope that he has the sleepless nights I have had for the past five weeks because my son sustained horrific injuries."
  • (17) The weakness was treated by intensive physical rehabilitation with complete and sustained recovery in all cases.
  • (18) For recreational runners who have sustained injuries, especially within the past year, a reduction in running to below 32 km per week is recommended.
  • (19) In the facial fractures, a large number of these patients also sustain a head injury.
  • (20) Chromatographic analysis of this radioactivity reveals that the octadecapeptide gives rise to much higher tissue levels of intact peptide and we believe that this acts as a depot and gives rise to the sustained blood concentrations and prolonged biological effects observed with this peptide.