What's the difference between persistent and unyielding?

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%.

Unyielding


Definition:

Example Sentences:

  • (1) In these patients, the conservative treatment by bouginage could not be continued due to a stricture unyielding for dilatation or early recurrence of the stricture after a number of dilatations.
  • (2) Suturing of these ostia is occasionally difficult because of an unyielding calcified vessel wall.
  • (3) The captain, Rio Ferdinand, was nearly as unyielding.
  • (4) Its enlargement of the lower portion overlying the basal portion of the heart formed an unyielding, tense membrane.
  • (5) The inefficient application of an unyielding (non-inertial) lap and diagonal seat belt permitted this injury, although one does not know what other injuries might have occurred had the belt not been worn.
  • (6) Recommendations to avoid this complication include shortening of the forearm at the osteotomy site and the release of unyielding soft tissue restraints.
  • (7) Although this study supported the thesis that a porous HA matrix can function as a bone graft substitute, it is noted that the unyielding nature of the implant blocks, compared to granules, requires a solution to the challenge of long-term denture support without ulceration before it can be used with clinical confidence.
  • (8) If Hollywood needed an emblematic heroine for a year of hard times and tough decisions, it came in the form of Jennifer Lawrence: resolute, unyielding and somehow old beyond her age.
  • (9) Climate change provides an unyielding science-based deadline.
  • (10) But he was more than just cinema's great choreographer of scale, the man Anthony Quinn likened to a general, commanding his troops and preparing for battle out in the blazing Arabian desert, or the unyielding Burmese jungle, or on the frostbitten Eastern Front.
  • (11) And there is the flinty personality, sharp, jagged, unyielding.
  • (12) The unyielding response of Italy, France and Germany came amidst a tsunami of global condemnation for Trump’s decision to renege on an agreement made by 195 countries after decades of negotiation.
  • (13) This happens in an area in which the deep branch of the radial nerve crossed some narrow structures which are unyielding and have more compression strength (tense cords of connective tissue Fig.
  • (14) Chen Xi once saw the one-child policy as a brick wall, unyielding and inevitable.
  • (15) Philosophers first, then early academic physiologists began to exhibit interest in pain, that all too common phenomenon, only too often unyielding to theoretical as well as practical efforts.
  • (16) This procedure consisted of the application of a rigid clip with a fixed and unyielding gap to the left renal artery and removal of the right kidney.
  • (17) He admired, and liked, practical people, especially those who had tasted some experience of life outside the City and Whitehall; he often appeared unyielding and unforgiving to the fumbling contradictions of political life, and he certainly had a very low threshold of patience with fools.
  • (18) As it was, the dominant performer in the stalemate was a resourceful and unyielding centre-half, United's Nemanja Vidic.
  • (19) It’s the work of the old masters, whoever your masters are, really, that remind you that you have to be singular, inflexible, unyielding in your own work so that even the struggle, that very struggle to achieve, becomes its own reward.
  • (20) But dogma has a habit of being unyielding, and Corbyn shows few signs of being able to develop fresh responses to a world that has changed out of recognition since his formative political impulses of the late 70s: what to do about the growing influence of Islamic State, the ethics of gene editing or the challenges that technology presents to issues as diverse as employment or transport.